WO2022222396A1 - Resource configuration method, device and storage medium - Google Patents

Abstract

The embodiments of the present application provide a resource configuration method, a device and a storage medium. The method comprises: a terminal device acquiring first configuration information, wherein the first configuration information is used for configuring a resource for sidelink communication; the terminal device acquiring the structure of a resource allocation unit according to the first configuration information; and the terminal device allocating one or more resource allocation units to the sidelink communication. Therefore, the flexibility of resource configuration is improved.

Description

Resource configuration method, device and storage medium

This application claims the priority of the PCT patent application with the application number PCT/CN2021/088790 and the application name "Resource Allocation Method, Equipment and Storage Medium", which was filed with the China Patent Office on April 21, 2021, the entire contents of which are by reference Incorporated in this application.

technical field

The embodiments of the present application relate to communication technologies, and in particular, to a resource configuration method, device, and storage medium.

Background technique

The sidelink (sidelink, SL) communication is different from the traditional cellular system in which the communication data is received or transmitted through the base station, and devices can communicate directly with each other. Therefore, the sidelink has higher spectral efficiency and lower transmission delay.

Expansion of sidelink communications to unlicensed spectrum is currently under study. In order to enable various communication systems that use unlicensed spectrum for wireless communication to coexist amicably on this spectrum, some countries or regions have stipulated regulatory requirements that must be met when using unlicensed spectrum. For example, if a terminal wants to use an unlicensed frequency band for communication, the frequency band occupied by the terminal needs to be greater than or equal to 80% of the system bandwidth and other regulatory requirements.

However, in the long term evolution (LTE) system and the new radio (NR) system, the sidelink communication is designed based on the communication in the licensed spectrum. In order to meet regulatory requirements for communications on unlicensed spectrum, current sidelink communications have yet to be improved.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a resource configuration method, device, and storage medium, so as to improve the flexibility of resource configuration.

In a first aspect, the embodiments of the present application may provide a resource configuration method, which is applied to a terminal device, and the method includes:

acquiring first configuration information, where the first configuration information is used to configure resources for sidelink communication;

obtaining the structure of the resource allocation unit according to the first configuration information;

One or more of the resource allocation units are allocated for sidelink communication of the terminal device.

In the second aspect, the embodiments of the present application may further provide a resource configuration method, which is applied to a network device, and the method includes:

determining resources for sidelink communications;

The first configuration information is sent, where the first configuration information is used to configure resources for sidelink communication, and the first configuration information includes information used to obtain the structure of the resource allocation unit.

In a third aspect, the embodiments of the present application may further provide a terminal device, including:

a transceiver unit, configured to acquire first configuration information, where the first configuration information is used to configure resources for sidelink communication;

a processing unit, configured to obtain the structure of the resource allocation unit according to the first configuration information;

The transceiver unit is further configured to allocate one or more of the resource allocation units for sidelink communication of the terminal device.

In a fourth aspect, the embodiments of the present application may further provide a network device, including:

a processing unit for determining resources for sidelink communication;

The transceiver unit is configured to send the first configuration information, where the first configuration information is used to configure resources for sidelink communication, and the first configuration information includes information used to obtain the structure of the resource allocation unit.

In a fifth aspect, the embodiments of the present application may further provide a terminal device, including:

processors, memories, interfaces for communicating with network devices;

the memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the resource configuration method provided in any one of the first aspects.

In a sixth aspect, the embodiments of the present application may further provide a network device, including:

Processor, memory, interface for communication with terminal equipment;

the memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the resource configuration method provided in any one of the second aspects.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement any one of the first aspect The resource allocation method described in item.

In an eighth aspect, embodiments of the present application provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement any of the methods described in the second aspect. The resource allocation method described in one item.

In a ninth aspect, an embodiment of the present application provides a program, which, when the program is executed by a processor, is used to execute the resource configuration method described in any one of the first aspect above.

In a tenth aspect, an embodiment of the present application further provides a program, which, when the program is executed by a processor, is used to execute the resource configuration method described in any one of the second aspect above.

Optionally, the above-mentioned processor may be a chip.

In an eleventh aspect, an embodiment of the present application provides a computer program product, including program instructions, where the program instructions are used to implement the resource configuration method described in any one of the first aspect.

In a twelfth aspect, an embodiment of the present application provides a computer program product, including program instructions, where the program instructions are used to implement the resource configuration method described in any one of the second aspect.

In a thirteenth aspect, an embodiment of the present application provides a chip, including: a processing module and a communication interface, where the processing module can execute the resource configuration method described in any one of the first aspect.

Further, the chip also includes a storage module (eg, memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to perform the first aspect. Any one of the resource configuration methods.

In a fourteenth aspect, an embodiment of the present application provides a chip, including: a processing module and a communication interface, where the processing module can execute the resource configuration method described in any one of the second aspect.

Further, the chip also includes a storage module (eg, memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to perform the second aspect Any one of the resource configuration methods.

Description of drawings

FIG. 1 is a schematic diagram of a communication system applicable to an embodiment of the present application;

FIG. 2 is another schematic diagram of a communication system applicable to an embodiment of the present application;

FIG. 3 is another schematic diagram of a communication system applicable to an embodiment of the present application;

3A is a schematic diagram of a unicast transmission mode provided by an embodiment of the present application;

3B is a schematic diagram of a multicast transmission mode provided by an embodiment of the present application;

3C is a schematic diagram of a broadcast transmission method provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a time slot structure provided by an embodiment of the present application;

5 is another schematic diagram of a time slot structure provided by an embodiment of the present application;

6 is a schematic diagram of a second-order SCI provided by an embodiment of the present application;

FIG. 7 is another schematic diagram of a time slot structure provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of the correspondence between PSSCH and PSFCH provided by an embodiment of the present application;

FIG. 9 is a schematic flowchart of a resource configuration method provided by an embodiment of the present application;

10 is a schematic diagram of determining a frequency domain start position and an end position of a resource block set provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of various BWPs provided by the embodiment of the present application;

12 is a schematic diagram of a first frequency domain structure of a resource allocation unit according to an embodiment of the present application;

13 is a schematic diagram of frequency domain resources of a resource pool provided by an embodiment of the present application;

14 is another schematic diagram of frequency domain resources of a resource pool provided by an embodiment of the present application;

15 is another schematic diagram of frequency domain resources of a resource pool provided by an embodiment of the present application;

16 is another schematic diagram of frequency domain resources of a resource pool provided by an embodiment of the present application;

17 is a schematic diagram of a first multiplexing manner of PSCCH and PSSCH provided by an embodiment of the present application;

18 is a schematic diagram of a second multiplexing manner of PSCCH and PSSCH provided by an embodiment of the present application;

19 is a schematic diagram of a third multiplexing manner of PSCCH and PSSCH provided by an embodiment of the present application;

20 is another schematic diagram of a third multiplexing manner of PSCCH and PSSCH provided by an embodiment of the present application;

FIG. 21 is a schematic diagram of format 1 of PSFCH provided by an embodiment of the present application;

22 is a schematic diagram of format 2 of PSFCH provided by an embodiment of the present application;

23 is a schematic diagram of a resource set of PSFCH provided by an embodiment of the present application;

24 is a schematic diagram of multiple PSFCH transmission opportunities provided by an embodiment of the present application;

FIG. 25 is another schematic diagram of multiple PSFCH transmission opportunities provided by an embodiment of the present application;

FIG. 26 is a schematic block diagram of an example of a communication device according to an embodiment of the present application;

FIG. 27 is a schematic structural diagram of an example of a terminal device according to an embodiment of the present application;

FIG. 28 is a schematic structural diagram of an example of a network device according to an embodiment of the present application.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The terms "first", "second" and the like in the description, claims and the above-mentioned drawings of the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

In this embodiment of the present application, "predefinition" may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The implementation method is not limited. For example, predefined may refer to the definition in the protocol.

In sideline communication, according to the network coverage of the communicating terminal, it can be divided into network coverage inner sideline communication, partial network coverage sideline communication, and network coverage outer sideline communication.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex) , TDD), fifth generation (5th generation, 5G) communication system, future communication system (such as sixth generation (6th generation, 6G) communication system), or a system that integrates multiple communication systems, etc., the embodiments of this application do not Do limit. Among them, 5G can also be called new radio (NR).

The technical solutions provided in the embodiments of the present application can be applied to various communication scenarios, for example, can be applied to one or more of the following communication scenarios: eMBB communication, URLLC, machine type communication (MTC), mMTC, device Device-to-device (D2D) communication, vehicle to everything (V2X) communication, vehicle to vehicle (V2V) communication, vehicle to network (V2N), vehicle to vehicle Infrastructure (Vehicle to Infrastructure, V2I), Vehicle to Pedestrian (V2P), and Internet of Things (IoT), etc. Optionally, the mMTC may include one or more of the following communications: communications in industrial wireless sensor or network (IWSN), communications in video surveillance (video surveillance) scenarios, and wearable device communications Wait. As shown in FIG. 1 , in the inbound communication within the network coverage, all the terminal devices (such as the terminal device 102 and the terminal device 103 ) performing the lateral communication are within the coverage of the same network device (such as the network device 101 ), thus, The above-mentioned terminal devices can all perform sideline communication based on the same sideline configuration by receiving the configuration signaling of the network device.

As shown in FIG. 2, in the case of partial network coverage of sideline communication, some terminal devices (such as terminal device 202) performing sideline communication are located within the coverage of network device 201, and these terminal devices can receive the configuration information of the base station. command, and perform sideline communication according to the configuration of the network device 201 . The terminal equipment (such as terminal equipment 203) located outside the network coverage cannot receive the configuration signaling of the network equipment 201. In this case, the terminal equipment outside the network coverage will be based on the pre-configuration information and The information carried in the physical sidelink broadcast channel (PSBCH) sent by the terminal equipment located within the network coverage determines the sidelink configuration and performs sidelink communication.

As shown in FIG. 3 , for outbound communication of network coverage, all terminal devices (such as terminal device 301 and terminal device 302 ) performing sideline communication are located outside the network coverage, and all terminal devices can determine the sideline according to the pre-configured information. Configured for sideline communication.

The terminal device involved in the embodiments of the present application may also be referred to as a terminal. The terminal may be a device with wireless transceiving function. Terminals can be deployed on land, including indoors, outdoors, handheld, and/or vehicle; can also be deployed on water (such as ships, etc.); and can also be deployed in the air (such as aircraft, balloons, and satellites, etc.). The terminal equipment may be user equipment (user equipment, UE). UEs include handheld devices, in-vehicle devices, wearable devices, or computing devices with wireless communication capabilities. Exemplarily, the UE may be a mobile phone, a tablet computer, or a computer with a wireless transceiver function. The terminal device may also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, intelligent A wireless terminal in a power grid, a wireless terminal in a smart city, and/or a wireless terminal in a smart home, and so on.

The network device involved in the embodiments of the present application includes a base station (base station, BS), which may be a device deployed in a wireless access network and capable of wirelessly communicating with a terminal device. The base station may have various forms, such as macro base station, micro base station, relay station or access point. The base station involved in the embodiments of the present application may be a base station in a 5G system, a base station in an LTE system, or a base station in other systems, which is not limited. Among them, the base station in the 5G system can also be called a transmission reception point (TRP) or a next generation Node B (generation Node B, gNB or gNodeB). The base station may be an integrated base station, or may be a base station separated into multiple network elements, which is not limited. For example, the base station is a base station in which a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU) are separated, that is, the base station includes a CU and a DU.

The related technologies and terms involved in this application are described below.

1. Transmission resource selection mode of D2D/V2X

Two transmission resource selection modes for terminal-to-terminal direct communication are defined in 3GPP:

The first mode: the transmission resources of the terminal device are allocated by the network device, and the terminal device sends data on the side link according to the resources allocated by the network device; the network device can allocate resources for a single transmission to the terminal device, or Allocate resources for semi-static transmission to end devices. The terminal equipment is located within the coverage of the network, and the network allocates transmission resources for sideline transmission to the terminal equipment.

The second mode: the terminal device selects a resource in the resource pool for data transmission. As shown in Figure 3, the terminal equipment is located outside the coverage of the cell, and the terminal equipment autonomously selects transmission resources in the preconfigured resource pool for sideline transmission; or in Figure 1, the terminal equipment autonomously selects transmission resources in the resource pool configured by the network. carry out sideline transmission;

2. NR-V2X transmission mode

In NR-V2X, autonomous driving needs to be supported, so higher requirements are put forward for data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, More flexible resource allocation, etc. In LTE-V2X, broadcast transmission is supported, and in NR-V2X, unicast and multicast transmissions are further introduced. For unicast transmission, there is only one terminal at the receiving end. For example, as shown in Figure 3A, unicast transmission is performed between UE1 and UE2; for multicast transmission, the receiving end is all terminals in a communication group, such as shown in Figure 3B. As shown, UE1, UE2, UE3 and UE4 form a communication group, in which UE1 sends data, and other terminal devices in this group are receiver terminals; or all terminals within a certain transmission distance; for broadcast transmission, its receiving The terminal may be any terminal around the transmitting terminal. As shown in FIG. 3C , UE1 is the transmitting terminal, and other terminals around it, UE2-UE6, are all receiving terminals.

3. NR-V2X system frame structure

The time slot structure in NR-V2X is shown in Figure 4 and Figure 5. The time slot shown in FIG. 4 is a time slot structure that does not include a physical sidelink feedback channel (PSFCH) channel; the time slot shown in FIG. 5 is a time slot structure that includes a PSFCH channel.

In NR-V2X, the physical sidelink control channel (PSCCH) starts from the second sideline symbol of the time slot in the time domain and occupies 2 or 3 orthogonal frequency division multiplexing (orthogonal frequency division) multiplexing, OFDM) symbols can occupy {10, 12 15, 20, 25} physical resource blocks (PRBs) in the frequency domain. In order to reduce the number of blind PSCCH detections by the UE, only one PSCCH symbol number and PRB number are allowed to be configured in one resource pool. In addition, because subchannels are the smallest granularity of physical sidelink shared channel (PSSCH) resource allocation in NR-V2X, the number of PRBs occupied by PSCCH must be less than or equal to the number of PRBs contained in a subchannel in the resource pool , so as not to impose additional restrictions on PSSCH resource selection or allocation. PSSCH also starts from the second side row symbol of the time slot in the time domain. The last time domain symbol in the time slot is the guard interval (GP) symbol, and the rest of the symbols map to PSSCH, as shown in Figure 4 . The first side row symbol in the time slot is the repetition of the second side row symbol. Usually, the receiving terminal uses the first side row symbol as an automatic gain control (AGC) symbol. Data is generally not used for data demodulation. PSSCH occupies K sub-channels in the frequency domain, and each sub-channel includes N consecutive PRBs.

When a time slot contains a PSFCH channel, the penultimate and third-to-last symbols in the time slot are used for PSFCH channel transmission, and a time domain symbol before the PSFCH channel is used as a GP symbol, as shown in Figure 5 below.

4. Second-order sidelink control information (SCI) mechanism in NR-V2X

2-order SCI is introduced in NR-V2X, as shown in Figure 6, the first-order SCI is carried in PSCCH, which is used to indicate PSSCH transmission resources, reserved resource information, (modulation and coding scheme, MCS) level, priority and other information, the second-order SCI is sent in the resources of PSSCH, and demodulated by the demodulation reference signal (DMRS) of PSSCH, which is used to indicate the identifier (ID) of the sender, the ID of the receiver, and the hybrid automatic Retransmission request (hybrid automatic repeat request, HARQ) ID, new data indicator (new data indicator, NDI) and other information used for data demodulation. The second-order SCI starts mapping from the first DMRS symbol of PSSCH, first in the frequency domain and then in the time domain. As shown in Figure 6, the PSCCH occupies 3 symbols ( symbols 1, 2, and 3), and the DMRS of the PSSCH occupies symbols 4 and 4. 11. The second-order SCI is mapped from symbol 4, and is frequency-division multiplexed with DMRS on symbol 4. The second-order SCI is mapped to symbols 4, 5, and 6. The size of the resources occupied by the second-order SCI depends on the second-order SCI. number of bits.

5. Format of PSFCH

In NR-V2X, the sideline feedback channel PSFCH is introduced. The PSFCH only carries 1-bit HARQ-ACK information and occupies 2 time-domain symbols in the time domain (the second symbol carries the sideline feedback information, the first The data on the symbol is a copy of the data on the second symbol, but this symbol is used as AGC), occupying 1 PRB in the frequency domain. In a time slot, the structures of PSFCH and PSSCH/PSCCH are shown in FIG. 7 , which schematically shows the positions of time domain symbols occupied by PSFCH, PSCCH, and PSSCH in a time slot. In a time slot, the last symbol is used as GP, the second-to-last symbol is used for PSFCH transmission, the data on the third-to-last symbol is the same as that of the second-to-last symbol (ie, the PSFCH symbol), which is used as AGC, The fourth-to-last symbol is also used as GP, the first symbol in the slot is used as AGC, the data on this symbol is the same as the data on the second time-domain symbol in the slot, PSCCH occupies 3 time-domain symbols , the remaining symbols are available for PSSCH transmission.

6. Resources of the lateral feedback channel

In order to reduce the overhead of the PSFCH channel, one time slot defined in every N time slots includes the PSFCH transmission resource, that is, the cycle of the sideline feedback resource is N time slots, where N=1, 2, 4, and the parameter N is the pre-set value. For configuration or network configuration, a schematic diagram of N=4 is shown in FIG. 8 .

Among them, the time slot interval between the PSFCH and its corresponding PSSCH is at least 2 time slots. Therefore, the PSSCH transmitted in time slots 2, 3, 4, and 5, the feedback information of which is transmitted in time slot 7, can be Taking the time slots {2, 3, 4, 5} as a time slot set, the PSSCH transmitted in the time slot set, the corresponding PSFCH is in the same time slot.

The resource allocation method provided by the present application will be described below with reference to the accompanying drawings.

FIG. 9 is a schematic flowchart of the resource allocation method provided by the present application.

S901, a terminal device acquires first configuration information, where the first configuration information is used to configure resources for sidelink communication.

The terminal device determines resources used for sidelink communication through the first configuration information.

As an example and not limitation, the first configuration information is pre-configured configuration information from a network device or from other terminal devices.

For example, the first configuration information is information preconfigured in the terminal device, and when the terminal device needs to perform sidelink communication, the terminal device may acquire the first configuration information from the preconfigured information. However, the present application is not limited to this.

For another example, the first configuration information comes from a network device or from other terminal devices. For example, terminal device A receives first configuration information from network device or terminal device B, and determines resources for sidelink communication according to the first configuration information. However, the present application is not limited to this.

It should be noted that the first configuration information may include one or more pieces of information (for example, the first configuration information includes the following first indication information, second indication information, etc., but the present application is not limited thereto).

In an implementation manner, acquiring the first configuration information by the terminal device may be understood as acquiring all the information in the first configuration information at one time.

For example, the terminal device may acquire all information for configuring the resources for sidelink communication from the preconfigured information at one time, or the terminal device may receive one configuration message (eg, a radio resource control (RRC) message) , the configuration message includes all the information in the first configuration information.

In another implementation manner, acquiring the first configuration information by the terminal device may be understood as acquiring different pieces of information in the first configuration information respectively by the terminal device.

For example, in order to determine the resources used for sidelink communication, the terminal device may first obtain the first indication information in the first configuration information from the preconfigured information, and then obtain the second indication information in the first configuration information. or other indication information, or, multiple pieces of information in the first configuration information are carried in multiple configuration messages, and the terminal device may separately receive the multiple configuration messages multiple times to obtain different information in the first configuration information. However, the present application is not limited to this. It should be understood that, when the terminal device acquires the information in the first configuration information in multiple times, the present application does not limit the sequence in which the terminal device acquires different information in the first configuration information.

Optionally, the first configuration information is used to configure the resources of the sidelink, including: the first configuration information is used to configure the resource pool of the sidelink. The resource pool may include at least one resource allocation unit.

In the embodiments of the present application, the resources used for sidelink communication are used as resource pools as an example for description. It should be understood that the present application is not limited thereto, and the resource pools in the embodiments of the present application may be replaced by sidelink communication Resources. The resource pool may also be referred to as a resource set or a time-frequency resource set, which is not limited in this application.

In some embodiments, the resource pool includes K1 resource block sets (Resource Block Set, RB set), wherein one resource block set includes K2 resource blocks, and K1 and K2 are positive integers. In some embodiments, one resource block set corresponds to one channel in the unlicensed spectrum (or shared spectrum) or the smallest frequency domain granularity for LBT.

For example, the bandwidth corresponding to a channel on an unlicensed spectrum is 20MHz, that is, the bandwidth corresponding to a resource block set is also 20MHz. Or, the bandwidth of a channel on an unlicensed spectrum is 20MHz, which corresponds to K3 RBs, and the K3 RBs are all RBs included in a channel, or all RBs that can be used for data transmission in a channel, such as K3=100 (corresponding to 15kHz subcarrier spacing), then one resource block set also corresponds to 100 RBs, that is, K2=100.

For another example, on the unlicensed spectrum, it is necessary to judge whether the unlicensed spectrum can be used by the result of LBT, and the minimum frequency domain granularity for LBT is 20MHz, then one resource block set corresponds to the number of RBs included in 20MHz. Or one resource block set includes K2=100 RBs (corresponding to 15 kHz subcarrier spacing), and the minimum frequency domain granularity of LBT is one resource block set, that is, 100 RBs.

In some embodiments, the starting position in the frequency domain of the resource pool is the same as the starting position in the frequency domain of the first resource block set in the K1 resource block sets, wherein the first resource block set is the The resource block set with the lowest position in the frequency domain among the K1 resource block sets.

In some embodiments, the frequency domain end position of the resource pool is the same as the frequency domain end position of the second resource block set in the K1 resource block sets, wherein the second resource block set is the K1 resource block sets. The resource block set with the highest frequency domain position in the resource block set.

For example, the resource pool includes K1=3 resource block sets, and the indexes of the corresponding resource block sets are resource block set 0, resource block set 1, and resource block set 2, respectively, wherein the frequency domain position of resource block set 0 is the lowest , the frequency domain position of resource block set 2 is the highest, therefore, the frequency domain starting position of the resource pool is the same as the frequency domain starting position of resource block set 0, or the frequency domain starting position of the resource pool is based on resource block set 0. The frequency domain start position of the resource pool is determined; the frequency domain end position of the resource pool is the same as the frequency domain end position of resource block set 2, or the frequency domain end position of the resource pool is determined according to the frequency domain end position of resource block set 2.

In some embodiments, the middle of two adjacent resource block sets in the K1 resource block sets included in the resource pool includes a guard band (Guard Band, GB).

In some embodiments, the frequency domain starting position and frequency domain size of the guard band are determined according to preconfigured information or network configuration information. The terminal acquires pre-configuration information or network configuration information, where the pre-configuration information or network configuration information is used to configure a guard band (Guard Band, GB). In a possible implementation manner, the frequency domain resources of the guard band are determined according to the following two parameters:

and

in,

is used to determine the starting position of the guard band in the frequency domain,

The frequency domain resource size used to determine the guard band (for example, it can be expressed as the number of RBs), s represents the index value (such as the index of the guard band in the side carrier or the side BWP), μ is based on the side row subcarrier spacing Size is ok.

In some embodiments, guard bands are used to separate resource block sets, and one resource block set includes K2 RBs. The frequency domain resources of a resource block set according to the parameter

and

OK, where s represents the index value,

is used to indicate the frequency domain starting position of the s-th resource block set,

It is used to indicate the end position in the frequency domain of the s-th resource block set, and μ is determined according to the size of the subcarrier interval of the side row. For the sth resource block set, the number of RBs included is

In some embodiments, the terminal device may, for example, determine the frequency domain start position and frequency domain end position of the s-th resource block set according to the following formula:

in,

Indicates the starting position in the frequency domain corresponding to the sideline carrier (or the sideline BWP, or the resource pool), in some embodiments

Represents the size of the frequency domain resources corresponding to the sideline carrier (or sideline BWP, or resource pool), expressed as the number of RBs; N _{RB set} represents the resource blocks included in the sideline carrier (or sideline BWP, or resource pool) number of sets.

For example, it can be understood with reference to FIG. 10. As shown in FIG. 10, three guard bands are configured in the side row BWP, corresponding to guard band 0, guard band 1 and guard band 2 respectively. These three guard bands are separated by 4 resources. The block set, according to the frequency domain starting position of the side row BWP (that is, the starting point of the side row BWP shown in the figure) and the frequency domain starting position of each guard band (that is, the starting point of the guard band shown in the figure) and The frequency domain size of the guard band (ie, the length of the guard band shown in the figure) can determine the frequency domain start position and end position of each resource block set. Since the resource pool includes 3 resource block sets, namely resource block set 0 to resource block set 2, the frequency domain starting position of the resource pool (ie the starting point of the resource pool shown in the figure) corresponds to resource block set 0 The starting position in the frequency domain of , and the ending position in the frequency domain of the resource pool (ie, the end point of the resource pool shown in the figure) corresponds to the ending position in the frequency domain of the resource block set 2 .

And in some embodiments, the side row BWP includes K4 resource block sets, and the frequency domain starting position of the side row BWP is the same as the frequency domain starting position of the third resource block set in the K4 resource block sets, The frequency domain end position of the sideline BWP is the same as the frequency domain end position of the fourth resource block set in the K4 resource block sets, wherein the third resource block set is the frequency domain in the K4 resource block sets The resource block set with the lowest position, and the fourth resource block set is the resource block set with the highest position in the frequency domain among the K4 resource block sets.

Optionally, the configuration information includes fourth indication information, where the fourth indication information is used to indicate a bandwidth part (bandwidth part, BWP) where the resource pool is located.

In commercial scenarios, such as smart homes, communication between wearable devices and mobile phones, etc., there is a high demand for energy saving of terminal equipment. In order to reduce the power consumption of terminal equipment, narrow bandwidth data transmission is to reduce power consumption. a method.

In SL communication, it can be specified that the terminal device can support one or more BWPs. Wherein, different BWPs correspond to different bandwidths, and/or, different BWPs may also correspond to different basic parameter sets (numerology).

For example, the basic parameter set may include sub-carrier spacing, and the sub-carrier spacing between different BWPs is different, but the present application is not limited thereto. For a terminal device with low capability, or a terminal device with a high demand for energy saving, it can work in a narrow band, and the fourth indication information in the first configuration information can indicate a BWP with a smaller bandwidth (for example, the bandwidth is less than or equal to a preset threshold value). BWP, but this application is not limited to this), that is, the BWP bandwidth where the resource pool is located is relatively small; for high-capacity terminals, or terminals with high requirements for transmission rates, they can work in broadband, the first configuration information in the first configuration information. The four indication information may indicate a BWP with a larger bandwidth (for example, a BWP with a bandwidth greater than or equal to a preset threshold, but the present application is not limited to this).

As an example and not limitation, the fourth indication information includes identification information of the BWP.

For example, the first configuration information includes index information of the BWP (ie, an example of identification information), which is used to indicate that the resource pool is a resource in the BWP corresponding to the index information of the BWP. However, the present application is not limited to this.

As shown in Figure 11, two BWPs are configured in the system: BWP1 and BWP2, where BWP1 is a narrowband BWP and BWP2 is a wideband BWP. The fourth indication information includes the index information of BWP1, which means that the resource pool is a resource pool in BWP1. The present application is not limited to this.

S902, the terminal device acquires the structure of the resource allocation unit according to the first configuration information.

The resource allocation unit may include multiple resource units, and the terminal device may acquire the structure adopted by the resource allocation unit in the resource pool according to the first configuration information.

As an example and not limitation, the resource unit is a PRB, and one PRB includes one time slot in the time domain and multiple subcarriers in the frequency domain.

The resource allocation unit may include at least one structure, and the at least one structure includes a first structure, and the first structure is that a plurality of resource units included in a resource allocation unit are discontinuous in the frequency domain.

For example, one resource allocation unit includes multiple PRBs, and at least one resource block is spaced between two adjacent resource blocks in the frequency domain among the multiple resource blocks. The resource allocation unit of the first structure may be called a comb-tooth RB (interlace RB, IRB).

For example, FIG. 12 is a schematic structural diagram of an IRB, and the bandwidth includes 30 PRBs, namely RB0 to RB29, and the first structure performs frequency domain resource allocation in units of IRBs. Wherein, one IRB includes 6 PRBs, and there are 5 PRBs between every two adjacent PRBs. As shown in FIG. 12 , the IRB0 includes PRB0 , PRB5 , PRB10 , PRB15 , PRB20 and PRB25 . There are 5 PRBs between two adjacent PRBs, such as PRB0 and PRB5. IRB0 and IRB1 are two different resource allocation units respectively. In sidelink communication, one or more IRBs in the resource pool may be scheduled for communication in units of IRBs. However, the present application is not limited to this.

The various structures of the resource allocation unit may further include a second structure, where the second structure is that a plurality of resource units included in one resource allocation unit are consecutive in the frequency domain.

For example, the second structure is that one resource allocation unit includes one or more PRBs, and the one or more resource blocks are consecutive in the frequency domain.

For example, the resource allocation unit of the second structure may be one PRB, and during sidelink communication, one PRB may be used as a unit to schedule one or more PRBs in the resource pool for communication. Alternatively, the resource allocation unit of the second structure may be N consecutive PRBs in the frequency domain, where N is a positive integer greater than 1. When performing sidelink communication, N PRBs can be used as a unit (that is, N PRBs are an RB group (RB group, RBG) or a sub-channel (sub-channel)), and when performing sidelink communication, it can be One or more RBGs in the resource pool are scheduled to communicate. However, the present application is not limited to this.

Optionally, the first configuration information includes first indication information, where the first indication information is used to indicate that the structure of the resource allocation unit in the resource pool is the first structure or the second structure.

Optionally, when the first indication information indicates that the resource allocation unit adopts the first structure, the first configuration information further includes indication information for indicating the frequency domain interval between two resource units in one resource allocation unit .

For example, the first configuration information further includes indication information for indicating a frequency domain interval between two adjacent PRBs in one IRB. The indication information indicating the frequency domain interval may indicate the number of PRBs spaced between two adjacent PRBs in the IRB, as shown in the IRB structure shown in FIG. 12 , the indication information indicating the frequency domain interval may indicate that the frequency domain interval is 5 PRB. The terminal device may determine, according to the indication information indicating the frequency domain interval, that there are 5 PRBs between two adjacent PRBs in the IRB. However, the present application is not limited to this.

Optionally, the indication information indicating the frequency domain interval may indicate the number of PRBs spaced between two adjacent PRBs in the IRB, if the frequency domain interval between two adjacent PRBs is greater than 1 (that is, two adjacent resources There is at least one resource block between blocks), which means that the resource allocation unit is instructed to adopt the first structure; if the frequency domain interval between two adjacent PRBs is equal to 1 (that is, the frequency domain is continuous between two adjacent resource blocks) resource block), which means that the resource allocation unit adopts the second structure.

The terminal device may determine the structure adopted by the resource allocation unit according to the indication information indicating the frequency domain interval.

The first configuration information may further include fifth indication information, where the fifth indication information is used to indicate the frequency domain resources included in the resource pool. The terminal device may determine the frequency domain resources included in the resource pool according to the fifth indication information. The fifth indication information is used to indicate at least one of the following:

The starting position in the frequency domain of the resource of the sidelink communication, the length of the frequency domain resource of the resource of the sidelink communication, the identification information of the resource allocation unit included in the resource of the sidelink communication, or the side The frequency domain end position of the resource for uplink communication.

In the following, the resource allocation unit is an IRB (that is, the structure of the resource allocation unit is the first structure) as an example for description. When the structure of the resource allocation unit is the second structure, a similar implementation manner can be adopted, and for brevity, it is not repeated here. Repeat.

When the resource allocation unit is an IRB, the manner in which the fifth indication information indicates the frequency domain resources included in the resource pool includes but is not limited to the following manners:

In Manner 1, the fifth indication information is used to indicate the frequency domain starting position and frequency domain resource length of the resource pool.

As an example and not limitation, the fifth indication information includes identification information of the starting PRB and the number of PRBs included in the resource pool.

For example, as shown in FIG. 13 , the system frequency domain resource includes 20 PRBs, namely PRB0 to PRB19 , including IRB0 to IRB4 , 5 IRBs in total, and each IRB includes 4 RBs. The numbers in each box in the figure represent the IRB to which the resource belongs. For example, IRB0 includes PRB0, PRB5, PRB10, and PRB15. The fifth indication information may indicate a starting RB index of 0, and the length of the frequency domain resource is 10 PRBs. The terminal device may determine, according to the fifth indication information, that the range of frequency domain resources included in the resource pool is PRB0 to PRB9. Specifically, the resource pool includes the first two PRBs of each of IRB0 to IRB4. For example, the resource pool includes PRB0 and PRB5 in IRB0, PRB1 and PRB6 in IRB1, PRB2 and PRB7 in IRB2, PRB3 and PRB8 in IRB3, and PRB4 and PRB9 in IRB4, but the present application is not limited thereto.

Manner 2, the fifth indication information is used to indicate the resource allocation unit included in the resource pool.

As an example and not limitation, the fifth indication information includes identification information of the resource allocation unit included in the resource pool. Alternatively, the fifth indication information includes identification information of the initial resource allocation unit included in the resource pool and the number of consecutive resource allocation units.

For example, as shown in FIG. 14, the system frequency domain resources include 20 PRBs, namely PRB0 to PRB19, including IRB0 to IRB4, a total of 5 IRBs, each IRB includes 4 PRBs, and the resource pool includes IRB0, IRB1 and IRB2. The fifth indication information may indicate index 0 of IRB0, index 1 of IRB1 and index 2 of IRB2, or the fifth indication information may indicate index 0 of the starting IRB0 included in the resource pool and the number of consecutive IRBs included 3. The terminal device may determine that the resource pool includes IRB0, IRB1 and IRB2 according to the fifth indication information. However, the present application is not limited to this.

In Manner 3, the fifth indication information is used to indicate the starting position in the frequency domain of the resource pool, the identification information of the resource allocation unit included in the resource pool, and the ending position in the frequency domain of the resource pool.

As an example and not limitation, the fifth indication information includes identification information of a starting PRB in the resource pool, identification information of a resource allocation unit included in the resource pool, and identification information of an ending PRB in the resource pool.

For example, as shown in Figure 15, the system frequency domain resources include 20 PRBs, namely PRB0 to PRB19, including IRB0 to IRB4, a total of 5 IRBs, each IRB includes 4 PRBs, and the resource pool includes IRB0, IRB1 and IRB2 in PRB3 to PRB16 between PRBs. The fifth indication information may indicate the index 3 of the starting PRB3, the index 16 of the ending PRB16, and the indexes 0, 1, and 2 of the IRB. The terminal device may determine, according to the fifth indication information, that the resource pool includes PRBs located between PRB3 to PRB16 and belonging to IRB0, IRB1 and IRB2. That is, as shown in FIG. 15 , the resource pool includes PRB5, PRB10, and PRB15 in IRB0, PRB6, PRB11, and PRB16 in IRB1, and PRB7 and PRB12 in IRB2. However, the present application is not limited to this.

Manner 4, the frequency domain starting position of the resource pool, the frequency domain resource length, and the identification information of the resource allocation unit included in the resource pool.

As an example and not limitation, the fifth indication information includes identification information of the starting PRB in the resource pool, the number of RBs included in the frequency domain resource, and the identification information of the resource allocation unit.

For example, as shown in Figure 16, the system frequency domain resources include 20 PRBs, namely PRB0 to PRB19, including IRB0 to IRB4, a total of 5 IRBs, each IRB includes 4 PRBs, and the resource pool includes PRB3 as the starting PRB for 10 consecutive PRBs. PRBs belonging to IRB0, IRB1 and IRB2 among the PRBs. The fifth indication information includes the index 3 of PRB3, the number of consecutive PRBs 10, and the IRB indices 0, 1, and 2. The terminal device may determine, according to the fifth indication information, that the resource pool includes PRBs belonging to IRB0, IRB1 and IRB2 among the 10 consecutive PRBs starting with RB3. That is, as shown in the figure, the resource pool includes PRB5 and PRB10 in IRB0, PRB6 and PRB11 in IRB1, and PRB7 and PRB12 in IRB2. However, the present application is not limited to this.

S930, the terminal device allocates one or more resource allocation units for sidelink communication.

The terminal equipment transmits PSCCH and PSSCH by using the allocated one or more resource allocation units, wherein the PSCCH is used for scheduling the PSSCH.

Optionally, the transmission of the PSCCH and the PSSCH in the allocated one or more resource allocation units uses at least one of the following multiplexing modes: time division multiplexing TDM mode, frequency division multiplexing FDM mode or time division-frequency Division multiplexing TDM+FDM mode, among which,

When the TDM mode is used, the resource for transmitting the PSCCH and the resource for transmitting the PSSCH overlap in the frequency domain, but do not overlap in the time domain;

When using the FDM mode, the resource for transmitting the PSCCH and the resource for transmitting the PSSCH do not overlap in the frequency domain, but overlap in the time domain;

When the TDM+FDM scheme is used, the resources used to transmit the PSCCH and the resources used to transmit the PSSCH partially overlap in the frequency domain and partially overlap in the time domain.

Taking the resource allocation unit as an IRB (that is, the structure of the resource allocation unit is the first structure) as an example, the TDM mode, the FDM mode or the TDM+FDM mode between the PSSCH and the PSCCH are respectively introduced below.

In an embodiment, the transmission of the PSCCH and the PSSCH uses the TDM manner.

One resource allocation unit in the allocated one or more resource allocation units includes n second time units in at least one first time unit in the time domain, and the n second time units are used for the PSCCH and PSSCH transmission. The transmission of the PSCCH and the PSSCH uses the TDM method, including:

The transmission of the PSCCH uses N second time units among the n second time units, and the transmission of the PSSCH uses second time units other than the N second time units among the n second time units, Among them, N and n are positive integers, and 1≤N<n. As an example and not limitation, the first time unit is a time slot, and the second time unit is a symbol (or a time domain symbol, an OFDM symbol).

Optionally, the positions of the N second time units in the n second time units may be specified by a protocol, preconfigured by the system, or configured by the first configuration information.

For example, as shown in FIG. 17 , the resource allocation unit is an IRB, and an IRB includes 13 symbols in a time slot in the time domain (ie, OFDM symbol 0 to OFDM symbol 12, n=13), and the terminal equipment is a side link. The resources are allocated with two resource allocation units, IRB0 and IRB1, and the resources used to transmit PSCCH use the second OFDM symbol in the scheduled IRB0 and IRB1 (that is, OFDM symbol 1 in a time slot, N=1), the PSSCH The transmission uses symbols other than OFDM symbol 1 in IRB0 and IRB1. OFDM symbols 13 in this slot are GP symbols. However, the present application is not limited to this.

It should be noted that, in the above example, the resource used for PSCCH transmission is described by using the second OFDM symbol in IRB0 and IRB1 that are scheduled as an example, but the present application is not limited to this, and the resource used for PSCCH transmission can also be The second OFDM symbol, or the third OFDM symbol, or the second and third OFDM symbols, or the first and second OFDM symbols, or the first OFDM symbol in the allocated one or more resource allocation units Symbol to the third OFDM symbol (ie, the first, second and third OFDM symbols), or other one or more OFDM symbols, which is not limited in this application.

In another embodiment, the transmission of the PSCCH and the PSSCH uses the FDM manner.

One resource allocation unit in the allocated one or more resource allocation units includes m frequency units in the frequency domain;

The transmission of the PSCCH and the PSSCH uses the FDM method, including:

The allocated one or more of the resource allocation units includes a first resource allocation unit, the transmission of the PSCCH uses M frequency units in the first resource allocation unit, and the transmission of the PSSCH uses the allocated one or more of the For frequency units other than the M frequency units in the resource allocation unit, M and m are positive integers, and 1≤M<m.

As an example and not limitation, the frequency unit is the frequency domain range of one PRB, that is, the frequency unit is multiple subcarriers included in one PRB.

For example, as shown in FIG. 18, the resource allocation unit is an IRB, an IRB includes 5 frequency units in the frequency domain (ie m=5), and there are 3 frequency units between two adjacent frequency units in the frequency domain in an IRB , the terminal equipment allocates two resource allocation units, IRB0 and IRB1, for the resources of the side link. The transmission of the PSCCH uses the first frequency unit and the second frequency unit in the IRB0 (that is, M=2). Transmissions use frequency units in the IRB0 and IRB1 other than those used by the PDCCH. However, the present application is not limited to this.

In another implementation manner, the transmission of the PSCCH and the PSSCH uses the TDM+FDM manner.

One resource allocation unit in the allocated one or more resource allocation units includes n second time units in at least one first time unit in the time domain, and m frequency units in the frequency domain; wherein, the n second time units are used for the transmission of the PSCCH and the PSSCH;

The transmission of the PSCCH and the PSSCH uses a TDM+FDM manner, including: the allocated one or more resource allocation units include a first resource allocation unit, and the resources used for the PSCCH transmission include the nth resource in the time domain The N second time units in the two time units include M frequency units in the first resource allocation unit in the frequency domain; the transmission of the PSSCH uses the allocated one or more resource allocation units to divide the PSCCH Resources other than those used for transmission, where M and m are positive integers, and 1≤N<n, 1≤M<m.

For example, as shown in FIG. 19, the resource allocation unit is an IRB. An IRB includes 13 symbols in a time slot in the time domain (ie, OFDM symbol 0 to OFDM symbol 12, n=13), and an IRB includes 4 symbols in the frequency domain. frequency units (that is, m=5), there are 3 frequency units between two adjacent frequency units in the frequency domain in one IRB, and the terminal equipment allocates two resource allocation units, IRB0 and IRB1, for the resources of the side link. , the resources used for PSCCH transmission include OFDM symbol 1 and OFDM symbol 2 in the IRB0 in the time domain, and include each frequency unit in the IRB0 in the frequency domain (ie, M=4), and the PSSCH transmission uses the IRB0 and resources other than those used by PDCCH in IRB1. However, the present application is not limited to this. For another example, as shown in Figure 20, the first symbol in a time slot is an AGC symbol, the last symbol is a GP symbol, PSCCH1 is used to schedule PSSCH1, PSCCH2 is used to schedule PSSCH2, and the resources used for transmission of PSCCH1 include in the time domain. OFDM symbol 1 and OFDM symbol 2 in the IRB0 include each frequency unit in the IRB0 in the frequency domain (ie, M=4), and the transmission of the PSSCH uses the resources in the IRB0 and IRB1 except the resources used by the PDCCH. . The resources used for the transmission of PSCCH2 include OFDM symbol 1 and OFDM symbol 2 in the IRB2 in the time domain, and each frequency unit in the IRB2 in the frequency domain (ie, M=4), and the transmission of the PSSCH uses the IRB2 in the resource. Resources other than those used by PDCCH. However, the present application is not limited to this.

In an implementation manner, the configuration information may include second indication information, where the second indication information is used to indicate a multiplexing manner used for transmission of the PSCCH and the PSSCH.

For example, the second indication information may indicate the identification information of the TDM mode, the FDM mode or the TDM+FDM mode, and the terminal device determines the multiplexing used by the PSCCH and PSSCH allocated by the terminal device according to the identification information of the multiplexing mode indicated by the second indication information The mode is the multiplexing mode corresponding to the identification information. However, the present application is not limited to this.

In another embodiment, the terminal device may determine the multiplexing mode used for PSCCH and PSSCH according to the number of second time units used for PSCCH transmission and/or according to the number of frequency units used for PSCCH transmission.

Optionally, the first configuration information includes third indication information, and the third indication information is used to indicate the number of second time units included in the resources used for transmission of the PSCCH, and/or, used to indicate the PSCCH The number of frequency units contained in the resource used for transmission.

In an example, the terminal device may determine the multiplexing manner used by the PSCCH and the PSSCH according to the number of the second time units used for the transmission of the PSCCH. For example, when the first configuration information indicates that N OFDM symbols are used for transmission of PSCCH (where N is a positive integer, and is less than the number of time-domain symbols available for sideline transmission in a time slot), it indicates that the transmission of PSCCH and PSSCH Use TDM mode or TDM+FDM mode; when the number of OFDM symbols used for PSCCH transmission is equal to the number of OFDM symbols available for sideline transmission in the time slot, it means that PSCCH and PSSCH transmission use FDM mode. However, the present application is not limited to this.

In a specific example, a time slot includes 14 time domain symbols, and all time domain symbols in the time slot can be used for sideline transmission (including GP symbols), wherein the PSCCH occupies N OFDM symbols, when N= When N is 14, it means that PSCCH and PSSCH are in FDM mode, and when N<14, it means that PSCCH and PSSCH are in TDM mode or TDM+FDM mode.

For another example, the second time unit is an OFDM symbol, and the first configuration information includes indication information 1 (ie, an example of the third indication information), where the indication information 1 is used to indicate the number of OFDM symbols used for PSCCH transmission. The terminal device may determine the multiplexing mode of the PSCCH and the PSSCH according to the indication information 1, but the present application is not limited to this.

In another example, the terminal device may determine the multiplexing mode used for the transmission of the PSCCH and the PSSCH according to the number of PRBs, IRBs or sub-channels (sub-channels) used for the transmission of the PSCCH. For example, when the number of PRBs used for PSCCH transmission is equal to the number of PRBs included in the IRB, or equal to the number of PRBs included in the sub-channel, it means that the transmission of PSCCH and PSSCH uses TDM or TDM+FDM. When the number of RBs used for PSCCH transmission is less than the number of RBs included in the IRB, or less than the number of RBs included in the sub-channel, it means that the transmission of the PSCCH and the PSSCH uses the FDM mode or the TDM+FDM mode. However, the present application is not limited to this. For another example, the first configuration information further includes indication information 2 (that is, another example of the third indication information), where the indication information 2 is used to indicate the number of RBs, the number of IRBs, or the subchannels occupied by the PSCCH in the resource pool. number of. The terminal device may determine the multiplexing mode of the PSCCH and the PSSCH according to the indication information 2, but the present application is not limited to this.

In the resource configuration method provided in the embodiment of the present application, the terminal device may acquire second configuration information, where the second configuration information is used to configure transmission parameters of the PSFCH (the second configuration information may be referred to as the configuration information of the PSFCH). The terminal device may determine the transmission parameters of the PSFCH in the resources of the sidelink communication according to the configuration information of the PSFCH. For example, the transmission parameters of the PSFCH in the resource pool used for sidelink communication.

As an example and not limitation, the second configuration information may be pre-configured, from a network device or from other terminal devices.

In an implementation manner, the second configuration information may be included in the foregoing first configuration information, and the terminal device obtains the second configuration information included in the first configuration information after acquiring the first configuration information.

In another implementation manner, the terminal device may acquire the second configuration information independently. And the second configuration information may include one or more kinds of information (for example, PSFCH format indication information, sixth indication information, seventh indication information, etc. hereinafter, but the application is not limited to this), and the terminal device can obtain the second information at one time. For all the information in the configuration information, multiple pieces of information in the second configuration information may be obtained separately for multiple times. For a specific implementation manner, reference may be made to the above description of the terminal device acquiring the first configuration information, which is not repeated here for brevity.

Optionally, the PSFCH may include multiple formats, wherein at least one of the following is different between two PSFCH formats in the multiple PSFCHs:

The number of frequency units included in the resource for transmitting the PSFCH, the number of second time units included in the resource for transmitting the PSFCH, or the maximum number of bits carried by the PSFCH.

For example, PSFCH may include but not limited to the following three formats:

In format 0, the PSFCH carries 1-bit HARQ-ACK information, occupies 2 time-domain symbols in the time domain, and occupies 1 PRB frequency unit in the frequency domain.

Format 1, the PSFCH occupies all time-domain symbols available for sideline transmission in one slot in the time domain (for example, the time-domain symbols available for sideline transmission do not include the last GP symbol), and occupies A1 PRBs in the frequency domain The frequency unit can carry up to M1 bits of sideline feedback information, where A1 is an integer greater than or equal to 1.

For example, format 1 of the PSFCH may be as shown in FIG. 21 . However, the present application is not limited to this.

In format 2, the PSFCH occupies 2 OFDM symbols in the time domain and A2 PRB frequency units in the frequency domain, and can carry up to M2 bits of sideline feedback information, where A2 is an integer greater than 1.

For example, the format 2 of the PSFCH is shown in Figure 22. The resources used to transmit the PSFCH occupy two OFDM symbols in the time domain, and the resource element (RE) used to transmit the PSFCH and the REs used to transmit the DMRS are located in this 2 frequency division multiplexing on the two symbols, the REs used to transmit the PSFCH and the REs used to transmit the DMRS are different REs in the A2 PRBs in the two OFDM symbols, but the present application is not limited thereto.

Optionally, the configuration information of the PSFCH further includes PSFCH format indication information, where the PSFCH format indication information is used to indicate at least one PSFCH format supported by the resource pool.

For example, the PSFCH format indication information indicates at least one of the above formats 0, 1, and 2. However, the present application is not limited to this.

Optionally, the configuration information of the PSFCH further includes sixth indication information and/or seventh indication information, wherein the sixth indication information is used to indicate the time domain period size of the PSFCH in the resource pool, and the seventh indication information is used for Indicates the time offset of the first first time unit used to transmit the PSFCH relative to the first time domain position. Wherein, the first first time unit used to transmit the PSFCH represents the time used for transmitting the PSFCH within a period of a system frame number (system frame number, SFN) or a period of a direct frame number (direct frame number, DFN). The first first time unit.

Wherein, the first time domain location may be one of the following locations:

The start position or end position of the first first time unit in a period of SFN;

The start position or end position of the first first time unit in a period of DFN;

The start position or end position of the first candidate first time unit in the resource pool for transmitting PSSCH in a period of SFN;

The start position or end position of the first candidate first time unit in the resource pool for transmitting PSSCH in a period of DFN.

The terminal device may determine, according to the sixth indication information and/or the seventh indication information, the first time unit that includes the PSFCH in the resource pool.

As an example and not limitation, the sixth indication information specifically indicates the number p of the first time units included in one time domain period of the PSFCH. According to the sixth indication information, the terminal device may determine that the transmission resources of the PSFCH are included in a first time unit of every p first time units.

For example, the first time unit is a time slot, the configuration information of the PSFCH further includes sixth indication information and seventh indication information, and the terminal device can determine a time slot that can transmit the PSFCH according to the time offset indicated by the seventh indication information, The terminal device can determine each time slot in the resource pool that can transmit the PSFCH according to the period size indicated by the sixth indication information. However, the present application is not limited to this.

Optionally, the configuration information of the PSFCH may further include eighth indication information, where the eighth indication information is used to transmit the number of second time units included in the resources of the PSFCH.

The terminal device may determine, according to the eighth indication information, the number of second time units included in the resource for transmitting the PSFCH in one time slot.

Optionally, the terminal device may determine the format of the PSFCH according to the number of second time units occupied by the PSFCH.

For example, when only PSFCH format 0 and format 1 are supported in the system, the terminal device may determine the PSFCH format supported by the resource pool according to the number of second time units included in the resource used for PSFCH transmission. If the PSFCH second time unit indication information indicates that the resource used for transmitting the PSFCH includes two second time units, it means that the resource pool supports PSFCH format 0. Or, if the indication information of the second time unit of the PSFCH indicates that the resource used for transmitting the PSFCH includes more than 2 second time units, it means that the resource pool supports PSFCH format 1. However, the present application is not limited to this.

Optionally, the configuration information of the PSFCH may further include PSFCH frequency domain resource indication information, where the PSFCH frequency domain resource indication information is used to indicate a frequency domain resource for transmitting the PSFCH.

In an implementation manner, the PSFCH frequency domain resource indication information may be a bitmap (bitmap), the bitmap includes a plurality of bits, the plurality of bits correspond to a plurality of resource allocation units in the resource pool, the bitmap One bit in the figure is used to indicate whether the corresponding resource allocation unit includes frequency domain resources for transmitting PSFCH. Wherein, the resource allocation unit may be an IRB.

For example, as shown in FIG. 12 , the frequency domain resources of the system (or the frequency domain resources of the resource pool) include frequency units of 5 IRBs, and the bitmap of the PSFCH frequency domain resource indication information includes 5 bits, each bit corresponding to one IRB. A value of 1 for a bit indicates that the IRB corresponding to the bit can be used to transmit the PSFCH, and a value of 0 indicates that the IRB corresponding to the bit cannot be used to transmit the PSFCH. For example, the 5 bits of the bitmap are 11000, which means that the IRB0 and IRB1 resources can be used to transmit the PSFCH. However, the present application is not limited to this.

In another embodiment, the PSFCH frequency domain resource indication information (ie, the ninth indication information) may be used to indicate the PSFCH resource set.

Optionally, the ninth indication information includes identification information of a starting PRB of the PSFCH resource set and frequency domain resource length information of the PSFCH resource set.

For example, as shown in FIG. 23, for the above-mentioned PSFCH format 1, since each PSFCH occupies all the time domain symbols available for sideline transmission in one time slot, the PSFCH resource set and the PSSCH/PSCCH resource set can be frequency-division complex. use. The terminal device may determine the resource set of the PSFCH according to the ninth indication information, but the present application is not limited thereto.

In an example, the ninth indication information may indicate the length of the frequency domain resources of the PSFCH resource set by indicating the number of PRBs included in the frequency domain resources of the PSFCH resource set.

In another example, the ninth indication information may indicate the length of the frequency domain resources of the PSFCH resource set by indicating that the frequency domain resources of the PSFCH resource set include the number of PSFCHs that do not overlap in the frequency domain.

For example, the resources used for PSFCH transmission in the resource pool include A1 PRBs, and the ninth indication information may indicate that the frequency domain resources of the PSFCH resource set include the number of PSFCHs with non-overlapping frequency domains being q, then the PSFCH resource set The length is q*A1 RBs. However, the present application is not limited to this.

Optionally, the terminal device may acquire tenth indication information, where the tenth indication information is used to indicate the number X of transmission opportunities of the PSFCH corresponding to the same PSSCH in the resource pool, where X is a positive integer. The number X of the PSFCH transmission opportunities represents X PSFCH transmission opportunities for the same PSSCH. Optionally, the X PSFCH transmission opportunities represent X PSFCH transmission opportunities in the time domain.

The terminal device may determine, according to the tenth indication information, transmission opportunities of X PSFCHs corresponding to one PSSCH transmission resource. That is to say, the feedback information of the terminal device on the PSSCH may be carried in at least one transmission opportunity among the X PSFCH transmission opportunities.

When the sidelink communication works in the unlicensed frequency band, the terminal device needs to perform the listen before talk (LBT) operation before the sideline transmission. Only when the LBT is successful can the transmission be performed, otherwise the sideline transmission cannot be performed. If there is only one time slot for the PSSCH corresponding to the PSFCH, if the receiving end fails the LBT before the PSFCH, the feedback information corresponding to the PSSCH cannot be sent, which will result in that even if the receiving end receives the PSSCH correctly, the transmitting end will also retransmit the PSSCH, resulting in waste of resources. Therefore, the embodiment of the present application proposes to indicate the transmission opportunities of multiple PSFCHs through the tenth indication information, so that when the terminal device acts as the receiving end, even if the LBT fails before one PSFCH, it still has the opportunity to transmit the PSFCH.

For example, as shown in Figure 24, the period of the PSFCH can be 4 time slots, the minimum time interval between the PSFCH and the PSSCH is 2 time slots, and the tenth indication information indicates that the number of transmission opportunities of the PSFCH is 2, which are transmission opportunities 1 respectively. and transmission opportunity 2. In the example shown in FIG. 24 , there is a period of one PSFCH (ie, 4 time slots) between two transmission opportunities corresponding to the same PSSCH, but the present application is not limited to this. Multiple PSFCH periods may be spaced apart. As shown in Figure 24, the first transmission opportunity of the PSFCH corresponding to the PSSCH carried in time slots 2, 3, 4, and 5 is the transmission opportunity 1 of the PSFCH in time slot 7, and the second transmission opportunity is the transmission opportunity of the PSFCH in time slot 11. transmission opportunity 2 of the PSFCH. Similarly, the correspondence between the transmission opportunities of the PSFCH in other periods and the PSSCH can be obtained. If the terminal device receives the PSSCH in the time slot 2, the first transmission opportunity corresponding to the PSSCH is the transmission opportunity 1 of the PSFCH in the time slot 7, and the second transmission opportunity is the transmission opportunity 2 of the PSFCH in the time slot 11. If the terminal device successfully performs LBT before transmission opportunity 1 of time slot 7, it transmits the PSFCH in time slot 7, and the PSFCH carries the feedback information of PSSCH in time slot 2. If the terminal device fails to perform LBT before transmission opportunity 1 of time slot 7, the terminal device cannot transmit the PSFCH in time slot 7, and the terminal device can perform LBT before transmission opportunity 2 of time slot 11. If the terminal device transmits in time slot 11 If the LBT is successful before opportunity 2, the terminal can transmit the PSFCH in time slot 11, where the PSFCH carries the feedback information of the PSSCH in time slot 2. However, the present application is not limited to this.

Optionally, the tenth indication information is included in the foregoing first configuration information, and the first configuration information may include configuration information of X PSFCHs corresponding to the X transmission opportunities. The configuration information of each PSFCH in the configuration information of the X PSFCHs may include at least one of the following items:

The sixth indication information, the seventh indication information, the indication information of the number of time domain symbols occupied by the PSFCH, or the indication information of the frequency domain resources of the PSFCH.

Optionally, time domains do not overlap between at least two of the X transmission opportunities, and/or at least two transmission opportunities of the PSFCH corresponding to the same PSSCH do not overlap in time domains.

For example, as shown in Figure 24, the system configures that each PSSCH corresponds to 2 PSFCH transmission opportunities. The first transmission opportunity of the PSFCH corresponding to the PSSCH carried in time slots 2, 3, 4, and 5 is the transmission opportunity 1 of the PSFCH in time slot 7, and the second transmission opportunity is the transmission opportunity 2 of the PSFCH in time slot 11 .

For another example, as shown in FIG. 25 , the system configures each PSSCH corresponding to 2 transmission opportunities of the PSFCH, that is, transmission opportunity 1 of the PSFCH and transmission opportunity 2 of the PSFCH. For example, the minimum time slot interval between the PSSCH and the PSFCH corresponding to the PSSCH can be configured to be 2 time slots, then for a PSSCH, the time slot where the corresponding first PSFCH transmission opportunity is located is after the time slot where the PSSCH is located, The first time slot including the PSFCH transmission resource that satisfies the minimum time slot interval (that is, at least 2 time slots away from the time slot where the PSSCH is located), and the time slot where the second PSFCH transmission opportunity corresponding to the PSSCH is located is After the time slot where the PSSCH is located, the second time slot including the PSFCH transmission resource meets the minimum time slot interval (that is, at least 2 time slots away from the time slot where the PSSCH is located).

As shown in Figure 25, the minimum time slot interval between the PSSCH and the PSFCH corresponding to the PSSCH is 2 time slots, then the first transmission opportunity of the PSFCH corresponding to the PSSCH carried by the time slot 0 is located after the time slot 0 and is the same as the time slot 0. The first time slot including the PSFCH transmission resource after time slot 0 is separated by at least 2 time slots is time slot 3, and the second transmission opportunity is located after time slot 0 and at least 2 time slots away from time slot 0. The second one includes the time slot of the PSFCH transmission resource, that is, the time slot 5; and the terminal device can also determine according to the above method that the first transmission opportunity of the PSFCH corresponding to the PSSCH carried by the time slot 1 is located in the time slot 3, and the second time The transmission opportunity is located in time slot 5; the first transmission opportunity of the PSFCH corresponding to the PSSCH carried by time slot 2 is located in time slot 5, and the second transmission opportunity is located in time slot 7; the first transmission opportunity of the PSFCH corresponding to the PSSCH carried by time slot 3 The transmission opportunity is in time slot 5, and the second transmission opportunity is in time slot 7. However, the present application is not limited to this.

According to the solution of the present application, the terminal device can determine the resource pool for sidelink communication according to the first configuration information. The first configuration information indicates that both the resource pool for sidelink communication on the licensed spectrum is configured and the configuration satisfying The resource pool for sidelink communication on the unlicensed spectrum required by regulations on the unlicensed spectrum provides a solution for the sidelink to use the unlicensed spectrum for homogeneity, which can improve the flexibility of resource allocation.

The methods provided by the embodiments of the present application have been described in detail above with reference to FIGS. 9 to 25 . The apparatuses provided by the embodiments of the present application are described below.

FIG. 26 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application. As shown in FIG. 26 , the communication apparatus 2500 may include a processing unit 2510 and a transceiver unit 2520 .

In a possible design, the communication apparatus 2500 may correspond to the terminal device in the above method embodiment, that is, the UE, or a chip configured (or used in) the terminal device.

It should be understood that the communication apparatus 2500 may correspond to the terminal device in the method 900 in this embodiment of the present application, and the communication apparatus 2500 may include a unit for executing the method performed by the terminal device in the method 900 in FIG. 9 . In addition, each unit in the communication device 2500 and the above-mentioned other operations and/or functions are respectively to implement the corresponding flow of the method 900 in FIG. 9 .

Optionally, when the communication apparatus 2500 corresponds to the terminal device in the method 900 of this embodiment of the present application, the communication apparatus 2500 may further include an acquisition unit, and the acquisition unit may be configured to acquire the first preconfigured terminal device. configuration information. Alternatively, the first configuration information may be received by the transceiver unit 2510 from a network device.

It should also be understood that when the communication apparatus 2500 is a chip configured (or used in) a terminal device, the transceiver unit 2520 in the communication apparatus 2500 may be an input/output interface or circuit of the chip, and the processing in the communication apparatus 2500 Unit 2510 may be a processor in a chip.

Optionally, the processing unit 2510 of the communication apparatus 2500 may be used to process instructions or data to implement corresponding operations.

Optionally, the communication device 2500 may further include a storage unit 2530, and the storage unit 2530 may be used to store instructions or data, and the processing unit 2510 may execute the instructions or data stored in the storage unit 2530, so that the communication device realizes the corresponding Operation, the transceiver unit 2520 in the communication device 2500 in the communication device 2500 may correspond to the transceiver 2610 in the terminal device 2600 shown in FIG. 27 , and the storage unit 2530 may correspond to the terminal device shown in FIG. 27 . 2600 memory.

It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiments, and for the sake of brevity, it will not be repeated here.

It should also be understood that when the communication apparatus 2500 is a terminal device, the transceiver unit 2520 in the communication apparatus 2500 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it may correspond to the terminal shown in FIG. 27 . The transceiver 2610 in the device 2600, the processing unit 2510 in the communication device 2500 may be implemented by at least one processor, for example, may correspond to the processor 2620 in the terminal device 2600 shown in FIG. The processing unit 2510 may be implemented by at least one logic circuit.

In another possible design, the communication apparatus 2500 may correspond to the network device in the above method embodiments, for example, or a chip configured (or used in) the network device.

It should be understood that the communication apparatus 2500 may correspond to the network device in the method 900 according to the embodiment of the present application, and the communication apparatus 2500 may include a unit for executing the method performed by the network device in the method 900 in FIG. 9 . In addition, each unit in the communication device 2500 and the above-mentioned other operations and/or functions are respectively to implement the corresponding flow of the method 900 in FIG. 9 .

It should also be understood that when the communication device 2500 is a chip configured (or used in) a network device, the transceiver unit 2520 in the communication device 2500 is an input/output interface or circuit in the chip, and the processing in the communication device 2500 Unit 2510 may be a processor in a chip.

Optionally, the processing unit 2510 of the communication apparatus 2500 may be used to process instructions or data to implement corresponding operations.

Optionally, the communication apparatus 2500 may further include a storage unit 2530, which may be used to store instructions or data, and the processing unit may execute the instructions or data stored in the storage unit 2530 to enable the communication apparatus to implement corresponding operations. The storage unit 2530 in the communication apparatus 2500 may correspond to the memory in the network device 2700 shown in FIG. 28 .

It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiments, and for the sake of brevity, it will not be repeated here.

It should also be understood that when the communication apparatus 2500 is a network device, the transceiver unit 2520 in the communication apparatus 2500 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, may correspond to the network shown in FIG. 28 The transceiver 2710 in the device 2700, the processing unit 2510 in the communication device 2500 may be implemented by at least one processor, for example, may correspond to the processor 2720 in the network device 2700 shown in FIG. The processing unit 2510 may be implemented by at least one logic circuit.

FIG. 27 is a schematic structural diagram of a terminal device 2600 provided by an embodiment of the present application. The terminal device 2600 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiments. As shown, the terminal device 2600 includes a processor 2620 and a transceiver 2610. Optionally, the terminal device 2600 further includes a memory. The processor 2620, the transceiver 2610 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals, the memory is used to store computer programs, and the processor 2620 is used to execute the computer in the memory. program to control the transceiver 2610 to send and receive signals.

The above-mentioned processor 2620 may be combined with the memory to form a processing device, and the processor 2620 is configured to execute the program codes stored in the memory to realize the above-mentioned functions. During specific implementation, the memory can also be integrated in the processor 2620, or be independent of the processor 2620. The processor 2620 may correspond to the processing unit in FIG. 26 .

The transceiver 2610 described above may correspond to the transceiver unit 2520 in FIG. 26 . The transceiver 2610 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used for receiving signals, and the transmitter is used for transmitting signals.

It should be understood that the terminal device 2600 shown in FIG. 27 can implement each process involving the first terminal device or the second terminal device in the embodiment of the method 900 in FIG. 9 . The operations and/or functions of each module in the terminal device 2600 are respectively to implement the corresponding processes in the foregoing method embodiments. For details, reference may be made to the descriptions in the foregoing method embodiments, and to avoid repetition, the detailed descriptions are appropriately omitted here.

The above-mentioned processor 2620 may be used to perform the actions described in the foregoing method embodiments that are implemented inside the terminal device, and the transceiver 2610 may be used to perform the operations described in the foregoing method embodiments that the terminal device sends to or receives from the network device. action. For details, please refer to the descriptions in the foregoing method embodiments, which will not be repeated here.

Optionally, the above-mentioned terminal device 2600 may further include a power supply for providing power to various devices or circuits in the terminal device.

In addition, in order to make the functions of the terminal device more complete, the terminal device 2600 may also include one or more of an input unit, a display unit, an audio circuit, a camera, a sensor, etc., and the audio circuit may also include a speaker, a microphone, etc. Wait.

FIG. 28 is a schematic structural diagram of a network device provided by an embodiment of the present application. The network device 2700 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiments. As shown, the terminal device 2700 includes a processor 2720 and a transceiver 2710. Optionally, the network device 2700 further includes a memory. The processor 2720, the transceiver 2710 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals, the memory is used to store computer programs, and the processor 2720 is used to execute the computer in the memory. program to control the transceiver 2710 to send and receive signals.

It should be understood that the network device 2700 shown in FIG. 28 can implement various processes involving the network device in the method 900 in FIG. 9 . The operations and/or functions of each module in the network device 2700 are respectively to implement the corresponding processes in the foregoing method embodiments. For details, reference may be made to the descriptions in the foregoing method embodiments, and to avoid repetition, the detailed descriptions are appropriately omitted here.

It should be understood that the network device 2700 shown in FIG. 28 is only a possible architecture of the network device, and should not constitute any limitation to the present application. The methods provided in this application may be applicable to network devices of other architectures. For example, network equipment including CU, DU, and AAU, etc. This application does not limit the specific architecture of the network device.

An embodiment of the present application further provides a processing apparatus, including a processor and an interface, where the processor is configured to execute the method in any of the foregoing method embodiments.

It should be understood that the above-mentioned processing device may be one or more chips. For example, the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or a It is a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.

In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here.

It should be noted that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The aforementioned processors may be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components . The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

For the method provided by the embodiment of the present application, the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is executed by one or more processors, makes the device including the processor The method in the above embodiment is performed.

According to the methods provided by the embodiments of the present application, the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores program codes, and when the program codes are executed by one or more processors, the processing includes the processing The device of the controller executes the method in the above-mentioned embodiment.

According to the method provided by the embodiment of the present application, the present application further provides a system, which includes the aforementioned one or more network devices. The system may further include one or more of the aforementioned terminal devices.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules may be combined or integrated into Another system, or some features can be ignored, or not implemented. On the other hand, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of modules may be in electrical, mechanical or other forms.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (138)

1. A resource allocation method, characterized in that it is applied to a terminal device, the method comprising:

   obtaining first configuration information, where the first configuration information is used to configure resources for sidelink communication;

   obtaining the structure of the resource allocation unit according to the first configuration information;

   One or more of the resource allocation units are allocated for sidelink communication of the terminal device.
2. The method according to claim 1, wherein the first configuration information is used to configure resources for sidelink communication, comprising: the first configuration information is used to configure a resource pool for sidelink communication,

   Wherein, the resource pool includes at least one of the resource allocation units.
3. The method according to claim 1 or 2, wherein the resource allocation unit includes a plurality of resource units, the first configuration information includes first indication information, and the first indication information is used to indicate the resource The structure of the distribution unit is the first structure or the second structure,

   The first structure is that the plurality of resource units included in the resource allocation unit are discontinuous in the frequency domain, and the second structure is that the plurality of resource units included in the resource allocation unit are in the frequency domain. on continuous.
4. The method according to claim 3, wherein the method further comprises:

   The physical side row control channel PSCCH and the physical side row shared channel PSSCH are transmitted by using the allocated one or more resource allocation units, wherein the PSCCH is used for scheduling the PSSCH.
5. The method according to claim 4, wherein the resource allocation unit is the first structure, and the transmission of the PSCCH and the PSSCH in the allocated one or more resource allocation units is used as follows At least one of the multiplexing modes: time division multiplexing TDM mode, frequency division multiplexing FDM mode or time division-frequency division multiplexing TDM+FDM mode, wherein,

   When using the TDM mode, the resources for transmitting the PSCCH and the resources for transmitting the PSSCH overlap in the frequency domain, but do not overlap in the time domain;

   When the FDM mode is used, the resource for transmitting the PSCCH and the resource for transmitting the PSSCH do not overlap in the frequency domain, but overlap in the time domain;

   When the TDM+FDM mode is used, the resources for transmitting the PSCCH and the resources for transmitting the PSSCH partially overlap in the frequency domain and partially overlap in the time domain.
6. The method according to claim 5, wherein one resource allocation unit in the allocated one or more resource allocation units includes n second times within at least one first time unit in the time domain unit, the n second time units are used for the transmission of the PSCCH and the PSSCH;

   The transmission of the PSCCH and the PSSCH uses the TDM manner, including:

   The transmission of the PSCCH uses N second time units among the n second time units, and the transmission of the PSSCH uses the N second time units other than the N second time units. The second time unit, wherein N and n are positive integers, and 1≤N<n.
7. The method according to claim 5, wherein one resource allocation unit in the allocated one or more resource allocation units includes m frequency units in the frequency domain;

   The transmission of the PSCCH and the PSSCH uses the FDM manner, including:

   The allocated one or more of the resource allocation units includes a first resource allocation unit, the transmission of the PSCCH uses M frequency units in the first resource allocation unit, and the transmission of the PSSCH uses the allocation The frequency units other than the M frequency units in one or more of the resource allocation units, where M and m are positive integers, and 1≤M<m.
8. The method according to claim 5, wherein one resource allocation unit in the allocated one or more resource allocation units includes n second times within at least one first time unit in the time domain unit, including m frequency units in the frequency domain; wherein, the n second time units are used for the transmission of the PSCCH and the PSSCH;

   The transmission of the PSCCH and the PSSCH uses a TDM+FDM manner, including: the allocated one or more resource allocation units include a first resource allocation unit, and the resources used for the PSCCH transmission are in the time domain Including N second time units in the n second time units, including M frequency units in the first resource allocation unit in the frequency domain; transmission of the PSSCH uses one or more of the allocated Resource other than the resource used for the PSCCH transmission in the resource allocation units, wherein M and m are positive integers, and 1≤N<n, 1≤M<m.
9. The method according to claim 6 or 8, wherein the N second time units comprise the second second time units and/or the second second time units arranged in chronological order among the n second time units The third second time unit.
10. The method according to claim 6, 8 or 9, wherein the time domain positions of the N second time units in the n second time units are predefined by a protocol or the first configuration information configuration.
11. The method according to claim 7 or 8, wherein the first resource allocation unit is the first one that appears in the order of frequency from low to high among the allocated one or more resource allocation units the resource allocation unit or the last resource allocation unit, and/or,

    The M frequency units are the first M frequency units or the last M frequency units arranged in the order of frequencies from low to high in the first resource allocation unit.
12. The method according to claim 7, 8 or 11, wherein the frequency domain position of the first resource allocation unit in the allocated one or more resource allocation units is predefined or predetermined by a protocol. configured by the first configuration information, and/or,

    The frequency domain positions of the M frequency units in the first resource allocation unit are predefined by a protocol or configured by the first configuration information.
13. The method according to any one of claims 4 to 12, wherein the first configuration information includes second indication information, and the second indication information is used to indicate transmission usage of the PSCCH and the PSSCH of reuse.
14. The method according to any one of claims 4 to 12, wherein the first configuration information includes third indication information, and the third indication information is used to indicate transmission usage of the PSCCH The number of second time units included in the resource of , and/or the number of frequency units included in the resource used for the transmission of the PSCCH.
15. The method of claim 14, wherein the method further comprises:

    According to the third indication information, a multiplexing manner used for transmission of the PSCCH and the PSSCH is determined.
16. The method according to any one of claims 3 to 15, wherein the structure of the resource allocation unit is the first structure, the first configuration information further includes fifth indication information, and the fifth The indication information is used to indicate at least one of the following:

    the frequency domain starting position of the resources of the sidelink communication, the frequency domain resource length of the resources of the sidelink communication, the identification information of the resource allocation unit included in the resources of the sidelink communication , or the end position in the frequency domain of the resource of the sidelink communication.
17. The method according to any one of claims 2 to 16, wherein the resource pool includes K1 resource block sets, wherein any one of the resource block sets includes K2 resource blocks, and the K1 and all Said K2 is a positive integer.
18. The method according to claim 17, wherein the starting position in the frequency domain of the resource pool is the same as the starting position in the frequency domain of the first resource block set in the K1 resource block sets, wherein the The first resource block set is the resource block set with the lowest position in the frequency domain among the K1 resource block sets.
19. The method according to claim 17 or 18, wherein the end position in the frequency domain of the resource pool is the same as the end position in the frequency domain of the second resource block set in the K1 resource block sets, wherein the The second resource block set is the resource block set with the highest position in the frequency domain among the K1 resource block sets.
20. The method according to any one of claims 17 to 19, wherein a guard band is included in the middle of two adjacent resource block sets in the K1 resource block sets.
21. The method according to claim 20, wherein the frequency domain starting position of the frequency band and the frequency domain size of the frequency band are determined according to pre-configuration information or network configuration information.
22. The method according to any one of claims 1 to 21, wherein the first configuration information further comprises fourth indication information, wherein the fourth indication information is used to indicate resources of the sidelink communication The bandwidth part where the BWP is located.
23. The method according to any one of claims 1 to 22, wherein the method further comprises:

    Acquire second configuration information, where the second configuration information is used to configure transmission parameters of the physical sidelink feedback channel PSFCH in the resources of the sidelink communication, wherein the second configuration information includes a parameter used to indicate at least the following An instruction:

    At least one PSFCH format adopted by the PSFCH, frequency domain resources used for PSFCH transmission, time domain resources used for PSFCH transmission, the first time unit where the PSFCH is located, the resource allocation unit where the PSFCH is located, or resources for transmitting the PSFCH the number of second time units included,

    Wherein, the first time unit includes at least one of the second time units.
24. The method according to claim 23, wherein the at least one PSFCH format is at least one of multiple PSFCH formats predefined by the protocol, and the difference between the two PSFCH formats in the multiple PSFCH formats is At least one of the following is different:

    The number of frequency units included in the resource for transmitting the PSFCH, the number of second time units included in the resource for transmitting the PSFCH, or the maximum number of bits carried by the PSFCH.
25. The method according to claim 23 or 24, wherein the second configuration information further comprises sixth indication information and/or seventh indication information, wherein the sixth indication information is used to indicate the sidelink The time domain period size of the PSFCH in the communication resource, the seventh indication information is used to indicate the time offset of the first first time unit for transmitting the PSFCH relative to the first time domain position, the first time Domain location is

    The start position or end position of the first first time unit in a period of the system frame number SFN;

    The start position or end position of the first first time unit in a period of the direct frame number DFN;

    The starting position or the ending position of the first candidate first time unit for transmitting PSSCH in the resources of the sidelink communication in a period of SFN;

    The starting position or the ending position of the first candidate time slot used for PSSCH transmission in the resources of the sidelink communication in a period of DFN.
26. The method according to any one of claims 23 to 25, wherein the second configuration information includes eighth indication information, and the eighth indication information is used to indicate the second information included in the resource for transmitting the PSFCH. The number of time units.
27. The method of claim 26, wherein the method further comprises:

    According to the eighth indication information, the format of the PSFCH in the resource of the sidelink communication is determined.
28. The method according to any one of claims 23 to 26, wherein the second configuration information includes a bitmap, and the bitmap is used to indicate a frequency domain resource for transmitting the PSFCH, and the bitmap including a plurality of bits, the plurality of bits correspond to a plurality of the resource allocation units in the resources of the sidelink communication, and one bit in the bitmap is used to indicate the corresponding resource Whether the allocation unit includes frequency domain resources for transmitting PSFCH,

    Wherein, one resource allocation unit in the plurality of resource allocation units includes a plurality of resource units, and the plurality of resource units are discontinuous in the frequency domain.
29. The method according to any one of claims 23 to 28, wherein the second configuration information includes ninth indication information, and the ninth indication information is used to indicate a PSFCH resource set.
30. The method according to claim 29, wherein the ninth indication information comprises identification information of an initial resource allocation unit in the PSFCH resource set and frequency domain resource length information of the PSFCH resource set.
31. The method according to claim 30, wherein the frequency domain resource length information is used to indicate the number of frequency units included in the PSFCH resource set, or the number of included PSFCHs with non-overlapping frequency domains.
32. The method according to any one of claims 23 to 31, wherein the first configuration information further includes tenth indication information, and the tenth indication information is used to indicate the status of the sidelink communication. The number X of transmission opportunities of the PSFCH corresponding to the same PSSCH in the resource, where X is a positive integer.
33. The method according to claim 32, wherein the first configuration information comprises X pieces of second configuration information corresponding to the X pieces of the transmission opportunities.
34. The method according to claim 32 or 33, wherein at least two of the X transmission opportunities do not overlap in time domain.
35. A resource allocation method, characterized in that, applied to a network device, the method comprising:

    determining resources for sidelink communications;

    Send first configuration information, where the first configuration information is used to configure resources for sidelink communication, and the first configuration information includes information used to acquire the structure of the resource allocation unit.
36. The method according to claim 35, wherein the first configuration information is used to configure resources for sidelink communication, comprising: the first configuration information is used to configure a resource pool for sidelink communication,

    Wherein, the resource pool includes at least one of the resource allocation units.
37. The method according to claim 35 or 36, wherein the resource allocation unit includes multiple resource units, the first configuration information includes first indication information, and the first indication information is used to indicate the resource The structure of the distribution unit is the first structure or the second structure,

    The first structure is that the plurality of resource units included in the resource allocation unit are discontinuous in the frequency domain, and the second structure is that the plurality of resource units included in the resource allocation unit are in the frequency domain. on continuous.
38. The method according to claim 37, wherein the resource allocation unit is the first structure, and the resources of the sidelink communication are used for one or more resource allocation units in the terminal equipment for the terminal The device transmits the physical sideline control channel PSCCH and the physical sideline shared channel PSSCH, and the PSCCH and the PSSCH are transmitted using at least one of the following multiplexing modes: time division multiplexing TDM mode, frequency division multiplexing FDM mode or time division multiplexing mode - Frequency division multiplexing TDM+FDM mode, wherein,

    When using the TDM mode, the resources for transmitting the PSCCH and the resources for transmitting the PSSCH overlap in the frequency domain, but do not overlap in the time domain;

    When the FDM mode is used, the resource for transmitting the PSCCH and the resource for transmitting the PSSCH do not overlap in the frequency domain, but overlap in the time domain;

    When the TDM+FDM mode is used, the resources for transmitting the PSCCH and the resources for transmitting the PSSCH partially overlap in the frequency domain and partially overlap in the time domain.
39. The method according to claim 38, wherein one resource allocation unit in the one or more resource allocation units includes n second time units within at least one first time unit in the time domain, The n second time units are used for the transmission of the PSCCH and the PSSCH;

    The transmission of the PSCCH and the PSSCH uses the TDM manner, including:

    The transmission of the PSCCH uses N second time units among the n second time units, and the transmission of the PSSCH uses the N second time units other than the N second time units. The second time unit, wherein N and n are positive integers, and 1≤N<n.
40. The method according to claim 38, wherein one resource allocation unit in the one or more resource allocation units includes m frequency units in the frequency domain;

    The transmission of the PSCCH and the PSSCH uses the FDM manner, including:

    The one or more resource allocation units include a first resource allocation unit, the transmission of the PSCCH uses M frequency units in the first resource allocation unit, and the transmission of the PSSCH uses the one or more frequency units. Frequency units other than the M frequency units in the resource allocation units, where M and m are positive integers, and 1≤M<m.
41. The method according to claim 38, wherein one resource allocation unit in the one or more resource allocation units includes n second time units within at least one first time unit in the time domain, In the frequency domain, m frequency units are included; wherein, the n second time units are used for the transmission of the PSCCH and the PSSCH;

    The transmission of the PSCCH and the PSSCH uses the TDM+FDM mode, including:

    The one or more of the resource allocation units include a first resource allocation unit, and the resources used for the transmission of the PSCCH include N second time units in the n second time units in the time domain. The frequency domain includes M frequency units in the first resource allocation unit; the transmission of the PSSCH uses resources other than the resources used for the PSCCH transmission in the one or more resource allocation units, wherein M and m are positive integers, and 1≤N<n, 1≤M<m.
42. The method according to claim 39 or 41, wherein the N second time units comprise the second second time units and/or the second second time units arranged in chronological order among the n second time units The third second time unit.
43. The method according to claim 39, 41 or 42, wherein the time domain positions of the N second time units in the n second time units are predefined by a protocol or the first configuration information configuration.
44. The method according to claim 40 or 41, wherein the first resource allocation unit is the first resource allocation that occurs in the order of frequency from low to high among the one or more resource allocation units unit or the last resource allocation unit, and/or,

    The M frequency units are the first M frequency units or the last M frequency units arranged in the order of frequencies from low to high in the first resource allocation unit.
45. The method according to claim 40, 41 or 44, wherein the frequency domain position of the first resource allocation unit in the one or more resource allocation units is predefined by a protocol or the first resource allocation unit a configuration information configured, and/or,

    The frequency domain positions of the M frequency units in the first resource allocation unit are predefined by a protocol or configured by the first configuration information.
46. The method according to any one of claims 38 to 45, wherein the first configuration information includes second indication information, and the second indication information is used to indicate transmission usage of the PSCCH and the PSSCH of reuse.
47. The method according to any one of claims 38 to 45, wherein the first configuration information includes third indication information, and the third indication information is used to indicate that the resources used for transmission of the PSCCH include The number of second time units, and/or, indicates the number of frequency units included in the resource used for transmission of the PSCCH.
48. The method of claim 47, wherein the method further comprises:

    According to the third indication information, a multiplexing manner used for transmission of the PSCCH and the PSSCH is determined.
49. The method according to any one of claims 37 to 48, wherein the structure of the resource allocation unit is the first structure, the first configuration information further includes fifth indication information, and the fifth The indication information is used to indicate at least one of the following:

    the frequency domain starting position of the resources of the sidelink communication, the frequency domain resource length of the resources of the sidelink communication, the identification information of the resource allocation unit included in the resources of the sidelink communication , or the end position in the frequency domain of the resource of the sidelink communication.
50. The method according to any one of claims 36 to 49, wherein the resource pool includes K1 resource block sets, wherein any one of the resource block sets includes K2 resource blocks, the K1 and all Said K2 is a positive integer.
51. The method according to claim 50, wherein the starting position in the frequency domain of the resource pool is the same as the starting position in the frequency domain of the first resource block set in the K1 resource block sets, wherein the The first resource block set is the resource block set with the lowest position in the frequency domain among the K1 resource block sets.
52. The method according to claim 50 or 51, wherein the end position in the frequency domain of the resource pool is the same as the end position in the frequency domain of the second resource block set in the K1 resource block sets, wherein the The second resource block set is the resource block set with the highest position in the frequency domain among the K1 resource block sets.
53. The method according to any one of claims 50 to 52, wherein a guard band is included in the middle of two adjacent resource block sets in the K1 resource block sets.
54. The method according to claim 53, wherein the frequency domain starting position of the frequency band and the frequency domain size of the frequency band are determined according to pre-configuration information or network configuration information.
55. The method according to any one of claims 35 to 54, wherein the first configuration information further comprises fourth indication information, wherein the fourth indication information is used to indicate resources of the sidelink communication The bandwidth part where the BWP is located.
56. The method according to any one of claims 35 to 55, wherein the method further comprises:

    Sending second configuration information, where the second configuration information is used to configure the transmission parameters of the physical sidelink feedback channel PSFCH in the resources of the sidelink communication, the second configuration information includes and is used to indicate at least one of the following Instructions:

    At least one PSFCH format adopted by the PSFCH, frequency domain resources used for PSFCH transmission, time domain resources used for PSFCH transmission, the first time unit where the PSFCH is located, the resource allocation unit where the PSFCH is located, or resources for transmitting the PSFCH the number of second time units included,

    Wherein, the first time unit includes at least one of the second time units.
57. The method according to claim 56, wherein the at least one PSFCH format is at least one of multiple PSFCH formats predefined by the protocol, and the difference between the two PSFCH formats in the multiple PSFCH formats is At least one of the following is different:

    The number of frequency units included in the resource for transmitting the PSFCH, the number of second time units included in the resource for transmitting the PSFCH, or the maximum number of bits carried by the PSFCH.
58. The method according to claim 56 or 57, wherein the second configuration information further comprises sixth indication information and/or seventh indication information, wherein the sixth indication information is used to indicate the sidelink The time domain period size of the PSFCH in the communication resource, the seventh indication information is used to indicate the time offset of the first first time unit for transmitting the PSFCH relative to the first time domain position, the first time Domain location is

    The start position or end position of the first first time unit in a period of the system frame number SFN;

    The start position or end position of the first first time unit in a period of the direct frame number DFN;

    The starting position or the ending position of the first candidate first time unit for transmitting PSSCH in the resources of the sidelink communication in a period of SFN;

    The starting position or the ending position of the first candidate time slot used for PSSCH transmission in the resources of the sidelink communication in a period of DFN.
59. The method according to any one of claims 56 to 58, wherein the second configuration information includes eighth indication information, and the eighth indication information is used to indicate the second information included in the resource for transmitting the PSFCH. The number of time units.
60. The method of claim 59, wherein the method further comprises:

    According to the eighth indication information, the format of the PSFCH in the resource of the sidelink communication is determined.
61. The method according to any one of claims 56 to 59, wherein the second configuration information includes a bitmap, and the bitmap is used to indicate a frequency domain resource used for transmitting the PSFCH, and the bitmap including a plurality of bits, the plurality of bits correspond to a plurality of the resource allocation units in the resources of the sidelink communication, and one bit in the bitmap is used to indicate the corresponding resource Whether the allocation unit includes frequency domain resources for transmitting PSFCH,

    Wherein, one resource allocation unit in the plurality of resource allocation units includes a plurality of resource units, and the plurality of resource units are discontinuous in the frequency domain.
62. The method according to any one of claims 56 to 61, wherein the second configuration information includes ninth indication information, and the ninth indication information is used to indicate a PSFCH resource set.
63. The method according to claim 62, wherein the ninth indication information comprises identification information of an initial resource allocation unit in the PSFCH resource set and frequency domain resource length information of the PSFCH resource set.
64. The method according to claim 63, wherein the frequency domain resource length information is used to indicate the number of frequency units included in the PSFCH resource set or the number of included PSFCHs with non-overlapping frequency domains.
65. The method according to any one of claims 56 to 64, wherein the first configuration information further includes tenth indication information, and the tenth indication information is used to indicate the status of the sidelink communication. The number X of transmission opportunities of the PSFCH corresponding to the same PSSCH in the resource, where X is a positive integer.
66. The method according to claim 65, wherein the first configuration information comprises X pieces of second configuration information corresponding to the X pieces of the transmission opportunities.
67. The method according to claim 65 or 66, wherein at least two of the X transmission opportunities do not overlap in time domain.
68. A resource allocation apparatus, characterized in that, applied to terminal equipment, comprising:

    a transceiver unit, configured to acquire first configuration information, where the first configuration information is used to configure resources for sidelink communication;

    a processing unit, configured to acquire the structure of the resource allocation unit according to the first configuration information;

    The transceiver unit is further configured to allocate one or more of the resource allocation units for sidelink communication of the terminal device.
69. The apparatus according to claim 69, wherein the first configuration information is used to configure resources for sidelink communication, comprising: the first configuration information is used to configure a resource pool for sidelink communication,

    Wherein, the resource pool includes at least one of the resource allocation units.
70. The apparatus according to claim 68 or 69, wherein the resource allocation unit includes multiple resource units, the first configuration information includes first indication information, and the first indication information is used to indicate the resource The structure of the distribution unit is the first structure or the second structure,

    The first structure is that the plurality of resource units included in the resource allocation unit are discontinuous in the frequency domain, and the second structure is that the plurality of resource units included in the resource allocation unit are in the frequency domain. on continuous.
71. The apparatus of claim 70, wherein:

    The transceiver unit is further configured to transmit a physical sideline control channel PSCCH and a physical sideline shared channel PSSCH by using the allocated one or more resource allocation units, wherein the PSCCH is used for scheduling the PSSCH.
72. The apparatus according to claim 71, wherein the resource allocation unit is the first structure, and the transmission of the PSCCH and the PSSCH in the allocated one or more resource allocation units is used as follows At least one of the multiplexing modes: time division multiplexing TDM mode, frequency division multiplexing FDM mode or time division-frequency division multiplexing TDM+FDM mode, wherein,

    When using the TDM mode, the resources for transmitting the PSCCH and the resources for transmitting the PSSCH overlap in the frequency domain, but do not overlap in the time domain;

    When the FDM mode is used, the resource for transmitting the PSCCH and the resource for transmitting the PSSCH do not overlap in the frequency domain, but overlap in the time domain;

    When the TDM+FDM mode is used, the resources for transmitting the PSCCH and the resources for transmitting the PSSCH partially overlap in the frequency domain and partially overlap in the time domain.
73. The apparatus according to claim 72, wherein one resource allocation unit in the allocated one or more resource allocation units includes, in the time domain, n second times within at least one first time unit unit, the n second time units are used for the transmission of the PSCCH and the PSSCH;

    The transmission of the PSCCH and the PSSCH uses the TDM manner, including:

    The transmission of the PSCCH uses N second time units among the n second time units, and the transmission of the PSSCH uses the N second time units other than the N second time units. The second time unit, wherein N and n are positive integers, and 1≤N<n.
74. The apparatus according to claim 72, wherein one resource allocation unit in the allocated one or more resource allocation units includes m frequency units in the frequency domain;

    The transmission of the PSCCH and the PSSCH uses the FDM manner, including:

    The allocated one or more of the resource allocation units includes a first resource allocation unit, the transmission of the PSCCH uses M frequency units in the first resource allocation unit, and the transmission of the PSSCH uses the allocation The frequency units other than the M frequency units in one or more of the resource allocation units, where M and m are positive integers, and 1≤M<m.
75. The apparatus according to claim 72, wherein one resource allocation unit in the allocated one or more resource allocation units includes, in the time domain, n second times within at least one first time unit unit, including m frequency units in the frequency domain; wherein, the n second time units are used for the transmission of the PSCCH and the PSSCH;

    The transmission of the PSCCH and the PSSCH uses a TDM+FDM manner, including: the allocated one or more resource allocation units include a first resource allocation unit, and the resources used for the PSCCH transmission are in the time domain Including N second time units in the n second time units, including M frequency units in the first resource allocation unit in the frequency domain; transmission of the PSSCH uses one or more of the allocated Resource other than the resource used for the PSCCH transmission in the resource allocation units, wherein M and m are positive integers, and 1≤N<n, 1≤M<m.
76. The device according to claim 73 or 75, wherein the N second time units comprise the second second time units and/or the second second time units arranged in chronological order among the n second time units The third second time unit.
77. The apparatus according to claim 73, 75 or 76, wherein the time domain positions of the N second time units in the n second time units are predefined by a protocol or the first configuration information configuration.
78. The apparatus according to claim 74 or 75, wherein the first resource allocation unit is the first one that appears in the order of frequency from low to high among the allocated one or more resource allocation units the resource allocation unit or the last resource allocation unit, and/or,

    The M frequency units are the first M frequency units or the last M frequency units in the first resource allocation unit arranged in order of frequency from low to high.
79. The apparatus according to claim 74, 75 or 78, wherein a frequency domain position of the first resource allocation unit in the allocated one or more resource allocation units is predefined or predetermined by a protocol configured by the first configuration information, and/or,

    The frequency domain positions of the M frequency units in the first resource allocation unit are predefined by a protocol or configured by the first configuration information.
80. The apparatus according to any one of claims 71 to 79, wherein the first configuration information comprises second indication information, and the second indication information is used to indicate transmission usage of the PSCCH and the PSSCH of reuse.
81. The apparatus according to any one of claims 71 to 79, wherein the first configuration information includes third indication information, and the third indication information is used to indicate transmission usage of the PSCCH The number of second time units included in the resource of , and/or the number of frequency units included in the resource used for the transmission of the PSCCH.
82. The apparatus of claim 81, wherein:

    The processing unit is further configured to determine, according to the third indication information, a multiplexing manner used for transmission of the PSCCH and the PSSCH.
83. The apparatus according to any one of claims 70 to 82, wherein the structure of the resource allocation unit is the first structure, the first configuration information further includes fifth indication information, and the fifth The indication information is used to indicate at least one of the following:

    the frequency domain starting position of the resources of the sidelink communication, the frequency domain resource length of the resources of the sidelink communication, the identification information of the resource allocation unit included in the resources of the sidelink communication , or the end position in the frequency domain of the resource of the sidelink communication.
84. The apparatus according to any one of claims 69 to 83, wherein the resource pool includes K1 resource block sets, wherein any one of the resource block sets includes K2 resource blocks, and the K1 and all Said K2 is a positive integer.
85. The apparatus according to claim 84, wherein the starting position in the frequency domain of the resource pool is the same as the starting position in the frequency domain of the first resource block set in the K1 resource block sets, wherein the The first resource block set is the resource block set with the lowest position in the frequency domain among the K1 resource block sets.
86. The apparatus according to claim 84 or 85, wherein the end position in the frequency domain of the resource pool is the same as the end position in the frequency domain of the second resource block set in the K1 resource block sets, wherein the The second resource block set is the resource block set with the highest position in the frequency domain among the K1 resource block sets.
87. The apparatus according to any one of claims 84 to 86, wherein a guard band is included in the middle of two adjacent resource block sets in the K1 resource block sets.
88. The apparatus according to claim 87, wherein the frequency domain starting position of the frequency band and the frequency domain size of the frequency band are determined according to pre-configuration information or network configuration information.
89. The apparatus according to any one of claims 68 to 88, wherein the first configuration information further includes fourth indication information, where the fourth indication information is used to indicate resources of the sidelink communication The bandwidth part where the BWP is located.
90. The device of any one of claims 58 to 89, wherein:

    The transceiver unit is further configured to acquire second configuration information, where the second configuration information is used to configure transmission parameters of the physical sidelink feedback channel PSFCH in the resources of the sidelink communication, wherein the second configuration The information includes indication information for indicating at least one of the following:

    At least one PSFCH format adopted by the PSFCH, frequency domain resources used for PSFCH transmission, time domain resources used for PSFCH transmission, the first time unit where the PSFCH is located, the resource allocation unit where the PSFCH is located, or resources for transmitting the PSFCH the number of second time units included,

    Wherein, the first time unit includes at least one of the second time units.
91. The apparatus according to claim 90, wherein the at least one PSFCH format is at least one of multiple PSFCH formats predefined by a protocol, and the difference between the two PSFCH formats in the multiple PSFCH formats is At least one of the following is different:

    The number of frequency units included in the resource for transmitting the PSFCH, the number of second time units included in the resource for transmitting the PSFCH, or the maximum number of bits carried by the PSFCH.
92. The apparatus according to claim 90 or 91, wherein the second configuration information further includes sixth indication information and/or seventh indication information, where the sixth indication information is used to indicate the sidelink The time domain period size of the PSFCH in the communication resource, the seventh indication information is used to indicate the time offset of the first first time unit for transmitting the PSFCH relative to the first time domain position, the first time Domain location is

    The start position or end position of the first first time unit in a period of the system frame number SFN;

    The start position or end position of the first first time unit in a period of the direct frame number DFN;

    The starting position or the ending position of the first candidate first time unit for transmitting PSSCH in the resources of the sidelink communication in a period of SFN;

    The starting position or the ending position of the first candidate time slot for transmitting PSSCH in the resources of the sidelink communication in a period of DFN.
93. The apparatus according to any one of claims 90 to 92, wherein the second configuration information includes eighth indication information, and the eighth indication information is used to indicate the second information included in the resource for transmitting the PSFCH. The number of time units.
94. The apparatus of claim 93, wherein:

    The processing unit is further configured to determine, according to the eighth indication information, the format of the PSFCH in the resource of the sidelink communication.
95. The apparatus according to any one of claims 90 to 94, wherein the second configuration information includes a bitmap, where the bitmap is used to indicate frequency domain resources used for transmitting PSFCH, and the bitmap including a plurality of bits, the plurality of bits correspond to a plurality of the resource allocation units in the resources of the sidelink communication, and one bit in the bitmap is used to indicate the corresponding resource Whether the allocation unit includes frequency domain resources for transmitting PSFCH,

    Wherein, one resource allocation unit in the plurality of resource allocation units includes a plurality of resource units, and the plurality of resource units are discontinuous in the frequency domain.
96. The apparatus according to any one of claims 90 to 95, wherein the second configuration information includes ninth indication information, and the ninth indication information is used to indicate a PSFCH resource set.
97. The apparatus according to claim 96, wherein the ninth indication information comprises identification information of an initial resource allocation unit in the PSFCH resource set and frequency domain resource length information of the PSFCH resource set.
98. The apparatus according to claim 97, wherein the frequency domain resource length information is used to indicate the number of frequency units included in the PSFCH resource set, or the number of included PSFCHs with non-overlapping frequency domains.
99. The apparatus according to any one of claims 90 to 98, wherein the first configuration information further includes tenth indication information, where the tenth indication information is used to indicate the status of the sidelink communication. The number X of transmission opportunities of the PSFCH corresponding to the same PSSCH in the resource, where X is a positive integer.
100. The apparatus according to claim 99, wherein the first configuration information comprises X pieces of second configuration information corresponding to the X pieces of the transmission opportunities.
101. The apparatus according to claim 99 or 100, wherein at least two of the X transmission opportunities do not overlap in time domain.
102. A resource allocation device, characterized in that, applied to network equipment, comprising:

     a processing unit for determining resources for sidelink communication;

     The transceiver unit is configured to send first configuration information, where the first configuration information is used to configure resources for sidelink communication, and the first configuration information includes information used to obtain the structure of the resource allocation unit.
103. The apparatus according to claim 102, wherein the first configuration information is used to configure resources for sidelink communication, comprising: the first configuration information is used to configure a resource pool for sidelink communication,

     Wherein, the resource pool includes at least one of the resource allocation units.
104. The apparatus according to claim 102 or 103, wherein the resource allocation unit includes multiple resource units, the first configuration information includes first indication information, and the first indication information is used to indicate the resource The structure of the distribution unit is the first structure or the second structure,

     The first structure is that the plurality of resource units included in the resource allocation unit are discontinuous in the frequency domain, and the second structure is that the plurality of resource units included in the resource allocation unit are in the frequency domain. on continuous.
105. The apparatus according to claim 104, wherein the resource allocation unit is the first structure, and the resources of the sidelink communication are used for one or more resource allocation units in the terminal equipment for the terminal The device transmits the physical sideline control channel PSCCH and the physical sideline shared channel PSSCH, and the PSCCH and the PSSCH are transmitted using at least one of the following multiplexing modes: time division multiplexing TDM mode, frequency division multiplexing FDM mode or time division multiplexing mode - Frequency division multiplexing TDM+FDM mode, wherein,

     When using the TDM mode, the resources for transmitting the PSCCH and the resources for transmitting the PSSCH overlap in the frequency domain, but do not overlap in the time domain;

     When the FDM mode is used, the resource for transmitting the PSCCH and the resource for transmitting the PSSCH do not overlap in the frequency domain, but overlap in the time domain;

     When the TDM+FDM mode is used, the resources for transmitting the PSCCH and the resources for transmitting the PSSCH partially overlap in the frequency domain and partially overlap in the time domain.
106. The apparatus according to claim 105, wherein one resource allocation unit in the one or more resource allocation units includes n second time units within at least one first time unit in the time domain, The n second time units are used for the transmission of the PSCCH and the PSSCH;

     The transmission of the PSCCH and the PSSCH uses the TDM manner, including:

     The transmission of the PSCCH uses N second time units among the n second time units, and the transmission of the PSSCH uses the N second time units other than the N second time units. The second time unit, wherein N and n are positive integers, and 1≤N<n.
107. The apparatus according to claim 105, wherein one resource allocation unit in the one or more resource allocation units includes m frequency units in the frequency domain;

     The transmission of the PSCCH and the PSSCH uses the FDM manner, including:

     The one or more resource allocation units include a first resource allocation unit, the transmission of the PSCCH uses M frequency units in the first resource allocation unit, and the transmission of the PSSCH uses the one or more frequency units. Frequency units other than the M frequency units in the resource allocation units, where M and m are positive integers, and 1≤M<m.
108. The apparatus according to claim 105, wherein one resource allocation unit in the one or more resource allocation units includes n second time units within at least one first time unit in the time domain, In the frequency domain, m frequency units are included; wherein, the n second time units are used for the transmission of the PSCCH and the PSSCH;

     The transmission of the PSCCH and the PSSCH uses the TDM+FDM mode, including:

     The one or more of the resource allocation units include a first resource allocation unit, and the resources used for the transmission of the PSCCH include N second time units in the n second time units in the time domain. The frequency domain includes M frequency units in the first resource allocation unit; the transmission of the PSSCH uses resources other than the resources used for the PSCCH transmission in the one or more resource allocation units, wherein M and m are positive integers, and 1≤N<n, 1≤M<m.
109. The apparatus according to claim 106 or 108, wherein the N second time units comprise the second second time units and/or the second second time units arranged in chronological order among the n second time units The third second time unit.
110. The apparatus according to claim 106, 108 or 109, wherein the time domain positions of the N second time units in the n second time units are predefined by a protocol or the first configuration information configuration.
111. The apparatus according to claim 107 or 108, wherein the first resource allocation unit is the first resource allocation that occurs in the order of frequency from low to high among the one or more resource allocation units unit or the last resource allocation unit, and/or,

     The M frequency units are the first M frequency units or the last M frequency units arranged in the order of frequencies from low to high in the first resource allocation unit.
112. The apparatus according to claim 107, 108 or 111, wherein a frequency domain position of the first resource allocation unit in the one or more resource allocation units is predefined by a protocol or the first resource allocation unit a configuration information configured, and/or,

     The frequency domain positions of the M frequency units in the first resource allocation unit are predefined by a protocol or configured by the first configuration information.
113. The apparatus according to any one of claims 105 to 112, wherein the first configuration information includes second indication information, and the second indication information is used to indicate transmission usage of the PSCCH and the PSSCH of reuse.
114. The apparatus according to any one of claims 105 to 112, wherein the first configuration information includes third indication information, and the third indication information is used to indicate that resources used for transmission of the PSCCH include The number of second time units, and/or, indicates the number of frequency units included in the resource used for transmission of the PSCCH.
115. The apparatus of claim 114, wherein:

     The processing unit is further configured to determine, according to the third indication information, a multiplexing manner used for transmission of the PSCCH and the PSSCH.
116. The apparatus according to any one of claims 104 to 115, wherein the structure of the resource allocation unit is the first structure, the first configuration information further includes fifth indication information, and the fifth The indication information is used to indicate at least one of the following:

     the frequency domain starting position of the resources of the sidelink communication, the frequency domain resource length of the resources of the sidelink communication, the identification information of the resource allocation unit included in the resources of the sidelink communication , or the end position in the frequency domain of the resource of the sidelink communication.
117. The apparatus according to any one of claims 103 to 116, wherein the resource pool includes K1 resource block sets, wherein any one of the resource block sets includes K2 resource blocks, and the K1 and all Said K2 is a positive integer.
118. The apparatus according to claim 117, wherein the starting position in the frequency domain of the resource pool is the same as the starting position in the frequency domain of the first resource block set in the K1 resource block sets, wherein the The first resource block set is the resource block set with the lowest position in the frequency domain among the K1 resource block sets.
119. The apparatus according to claim 117 or 118, wherein the end position in the frequency domain of the resource pool is the same as the end position in the frequency domain of the second resource block set in the K1 resource block sets, wherein the The second resource block set is the resource block set with the highest position in the frequency domain among the K1 resource block sets.
120. The apparatus according to any one of claims 117 to 119, wherein a guard band is included in the middle of two adjacent resource block sets in the K1 resource block sets.
121. The apparatus according to claim 120, wherein the frequency domain starting position of the frequency band and the frequency domain size of the frequency band are determined according to pre-configuration information or network configuration information.
122. The apparatus according to any one of claims 102 to 121, wherein the first configuration information further includes fourth indication information, where the fourth indication information is used to indicate resources of the sidelink communication The bandwidth part where the BWP is located.
123. The device according to any one of claims 102 to 122, characterized in that,

     The transceiver unit is further configured to send second configuration information, where the second configuration information is used to configure transmission parameters of the physical sidelink feedback channel PSFCH in the resources of the sidelink communication, and the second configuration information includes Used to indicate at least one of the following:

     At least one PSFCH format adopted by the PSFCH, frequency domain resources used for PSFCH transmission, time domain resources used for PSFCH transmission, the first time unit where the PSFCH is located, the resource allocation unit where the PSFCH is located, or resources for transmitting the PSFCH the number of second time units included,

     Wherein, the first time unit includes at least one of the second time units.
124. The apparatus according to claim 123, wherein the at least one PSFCH format is at least one of multiple PSFCH formats predefined by a protocol, and the difference between the two PSFCH formats in the multiple PSFCH formats is At least one of the following is different:

     The number of frequency units included in the resource for transmitting the PSFCH, the number of second time units included in the resource for transmitting the PSFCH, or the maximum number of bits carried by the PSFCH.
125. The apparatus according to claim 123 or 121, wherein the second configuration information further includes sixth indication information and/or seventh indication information, where the sixth indication information is used to indicate the sidelink The time domain period size of the PSFCH in the communication resource, the seventh indication information is used to indicate the time offset of the first first time unit for transmitting the PSFCH relative to the first time domain position, the first time Domain location is

     The start position or end position of the first first time unit in a period of the system frame number SFN;

     The start position or end position of the first first time unit in a period of the direct frame number DFN;

     The starting position or the ending position of the first candidate first time unit for transmitting PSSCH in the resources of the sidelink communication in a period of SFN;

     The starting position or the ending position of the first candidate time slot used for PSSCH transmission in the resources of the sidelink communication in a period of DFN.
126. The apparatus according to any one of claims 123 to 125, wherein the second configuration information includes eighth indication information, and the eighth indication information is used to indicate the second information included in the resource for transmitting the PSFCH. The number of time units.
127. The apparatus of claim 126, wherein:

     The processing unit is further configured to determine, according to the eighth indication information, the format of the PSFCH in the resource of the sidelink communication.
128. The apparatus according to any one of claims 123 to 127, wherein the second configuration information includes a bitmap, and the bitmap is used to indicate a frequency domain resource for transmitting the PSFCH, and the bitmap including a plurality of bits, the plurality of bits correspond to a plurality of the resource allocation units in the resources of the sidelink communication, and one bit in the bitmap is used to indicate the corresponding resource Whether the allocation unit includes frequency domain resources for transmitting PSFCH,

     Wherein, one resource allocation unit in the plurality of resource allocation units includes a plurality of resource units, and the plurality of resource units are discontinuous in the frequency domain.
129. The apparatus according to any one of claims 123 to 128, wherein the second configuration information includes ninth indication information, and the ninth indication information is used to indicate a PSFCH resource set.
130. The apparatus according to claim 129, wherein the ninth indication information comprises identification information of an initial resource allocation unit in the PSFCH resource set and frequency domain resource length information of the PSFCH resource set.
131. The apparatus according to claim 120, wherein the frequency domain resource length information is used to indicate the number of frequency units included in the PSFCH resource set or the number of included PSFCHs with non-overlapping frequency domains.
132. The apparatus according to any one of claims 123 to 131, wherein the first configuration information further includes tenth indication information, where the tenth indication information is used to indicate the status of the sidelink communication. The number X of transmission opportunities of the PSFCH corresponding to the same PSSCH in the resource, where X is a positive integer.
133. The apparatus according to claim 132, wherein the first configuration information comprises X pieces of second configuration information corresponding to the X pieces of the transmission opportunities.
134. The apparatus according to claim 132 or 133, wherein at least two of the X transmission opportunities do not overlap in time domain.
135. A communication device, comprising:

     Processor, memory, interface for communication with terminal equipment;

     the memory stores computer-executable instructions;

     The processor executes computer-implemented instructions stored in the memory, causing the processor to perform the method of any one of claims 1-67.
136. A computer-readable storage medium, characterized by comprising a computer program that, when executed by one or more processors, causes an apparatus comprising the processors to perform the method described in any one of claims 1 to 67 method.
137. A computer program product, characterized in that the computer program product comprises: a computer program, which, when the computer program is executed, causes a computer to execute the method according to any one of claims 1 to 67 .
138. A chip, characterized in that it includes at least one processor and a communication interface;

     The communication interface is used to receive signals input to the chip or signals output from the chip, and the processor communicates with the communication interface and executes a logic circuit or executes code instructions for implementing as in claims 1 to 67 The method of any one.

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